The example given herewith is perfect. The sun is situated in the sky, far, far away from the surface of the earth, but its reflection can be seen in a pot of water in the corner of a room. The room is dark, and the sun is far away in the sky, but the sun's reflection on the water illuminates the darkness of the room. A pure devotee can realize the presence of the Supreme Personality of Godhead in everything by the reflection of His energy. In the Viṣṇu Purāṇa it is stated that as the presence of fire is understood by heat and light, so the Supreme Personality of Godhead, although one without a second, is perceived everywhere by the diffusion of His different energies.
(Srimad Bhagavatam-----3:27:12-----purport).

Living entities are compared to the sparks of a fire. As stated in the previous verse, fire, flame, smoke and firewood are combined together. Here the living entity, the material elements and the Supreme Personality of Godhead are combined together. The exact position of the living entities is just like that of the sparks of a fire; they are part and parcel. The material energy is compared to the smoke. The fire is also part and parcel of the Supreme Lord. In the Viṣṇu Purāṇa it is said that whatever we can see or experience, either in the material or spiritual world, is an expansion of the different energies of the Supreme Lord. As fire distributes its light and heat from one place, the Supreme Personality of Godhead distributes His different energies all over His creation.
(Srimad Bhagavatam-----3:28:41-----purport).

Everyone is addicted to hearing of the activities of another person, whether a politician or a rich man or an imaginary character whose activities are created in a novel. There are so many nonsensical literatures, stories and books of speculative philosophy. Materialistic persons are very interested in reading such literature, but when they are presented with genuine books of knowledge like Śrīmad-Bhāgavatam, Bhagavad-gītā, Viṣṇu Purāṇa or other scriptures of the world, such as the Bible and Koran, they are not interested. These persons are condemned by the supreme order as much as a hog is condemned. The hog is interested in eating stool. If the hog is offered some nice preparation made of condensed milk or ghee, he won't like it; he would prefer obnoxious, bad-smelling stool, which he finds very relishable. Materialistic persons are considered condemned because they are interested in hellish activities and not in transcendental activities. The message of the Lord's activities is nectar, and besides that message, any information in which we may be interested is actually hellish.
(Srimad Bhagavatam-----3:32:19-----purport).

The Paramātmā feature and Brahman feature are invisible, but the Bhagavān feature is visible. In the Viṣṇu Purāṇa this fact is very nicely explained. The universal form of the Lord and the formless Brahman effulgence of the Lord, being invisible, are inferior features. The concept of the universal form is material, and the concept of impersonal Brahman is spiritual, but the highest spiritual understanding is the Personality of Godhead. The Viṣṇu Purāṇa states, viṣṇur brahma-svarūpeṇa svayam eva vyavasthitaḥ: Brahman's real feature is Viṣṇu, or the Supreme Brahman is Viṣṇu. Svayam eva: that is His personal feature. The supreme spiritual conception is the Supreme Personality of Godhead.
(Srimad Bhagavatam-----3:32:26-----purport).

One who is engaged in devotional service to Kṛṣṇa is understood to be already realized in the Brahman concept of life because transcendental knowledge of the Supreme Personality of Godhead includes knowledge of Brahman. This is confirmed in Bhagavad-gītā. Brahmaṇo hi pratiṣṭhāham (B.G.14:27): the concept of the Personality of Godhead does not depend on Brahman. The Viṣṇu Purāṇa also confirms that one who has taken shelter of the all-auspicious Supreme Lord is already situated in the understanding of Brahman. In other words, one who is a Vaiṣṇava is already a brāhmaṇa.
(Srimad Bhagavatam-----3:33:26-----purport).

The manifestations of Viṣṇu and those of the ordinary living entities are certainly all parts and parcels of the Supreme Lord, and no one is equal to Him, but among the parts and parcels there are different categories. In the Varāha Purāṇa it is nicely explained that some of the parts are svāṁśa and some are vibhinnāṁśa. Vibhinnāṁśa parts are called jīvas, and svāṁśa parts are in the Viṣṇu category. In the jīva category, the vibhinnāṁśa parts and parcels, there are also gradations. That is explained in the Viṣṇu Purāṇa, where it is clearly stated that the individual parts and parcels of the Supreme Lord are subject to being covered by the external energy, called illusion, or māyā. Such individual parts and parcels, who can travel to any part of the Lord's creation, are called sarva-gata and are suffering the pangs of material existence. They are proportionately freed from the coverings of ignorance under material existence according to different levels of work and under different influences of the modes of material nature.
(Srimad Bhagavatam-----4:1:15-----purport).

For the deliverance of those who are materially conditioned and attached to material enjoyment, performing yajña and following the rules and regulations of the four divisions of society and of spiritual life are recommended. It is said in the Viṣṇu Purāṇa that by offering sacrifice to Viṣṇu one can gradually be liberated. The whole target of life, therefore, is to please Lord Viṣṇu. That is yajña. Any person who is in Kṛṣṇa consciousness has dedicated his life for the satisfaction of Kṛṣṇa, the origin of all Viṣṇu forms, and by offering worship and prasāda daily, he becomes the best performer of yajña.
(Srimad Bhagavatam-----4:7:41-----purport).

In this statement Lord Viṣṇu's all-pervasiveness is partially explained. It is said in the Viṣṇu Purāṇa that as a fire situated in one place emanates its heat and illumination everywhere, so whatever we see within the material or spiritual worlds is nothing but a manifestation of different energies emanating from the Supreme Personality of Godhead.
(Srimad Bhagavatam-----4:7:45-----purport).

How the Lord acts is nicely explained in the Viṣṇu Purāṇa: fire is situated in one place, while the heat and light produced by the fire act in many different ways. Another example given is that the electric powerhouse is situated in one place, but by its energies many different types of machinery move. The production is never identical with the original source of the energy, but the original source of energy, being the prime factor, is simultaneously one with and different from the product.
(Srimad Bhagavatam-----4:11:18-----purport).

In the Viṣṇu Purāṇa it is stated that unless people are educated or situated in the scientific social order comprised of four varṇas (brāhmaṇa, kṣatriya, vaiśya and śūdra) and four āśramas (brahmacarya, gṛhastha, vānaprastha and sannyāsa), society can never be considered real human society, nor can it make any advancement towards the ultimate goal of human life.
(Srimad Bhagavatam-----4:14:18-----purport).

The Supreme Personality of Godhead, Lord Viṣṇu, continued: My dear King Pṛthu, when one situated in his occupational duty engages in My loving service without motive for material gain, he gradually becomes very satisfied within.
This verse is also confirmed by the Viṣṇu Purāṇa. Occupational duties are known as varṇāśrama-dharma and apply to the four divisions of material and spiritual life—namely brāhmaṇa, kṣatriya, vaiśya and śūdra, and brahmacarya, gṛhastha, vānaprastha and sannyāsa. If one works according to the varṇāśrama-dharma system and does not desire fruitive results, he gets satisfaction gradually. Discharging one's occupational duty as a means of rendering devotional service unto the Supreme Personality of Godhead is the ultimate goal of life.
(Srimad Bhagavatam-----4:20:9-----translation and purport).

When a person performs Vedic rituals and sacrifices, he does so to elevate himself to the heavenly planets. No one can become qualified to go back home, back to Godhead, by means of such sacrifices. But the Lord is so kind that He accepts a little insignificant service, and therefore it is stated in the Viṣṇu Purāṇa that by following the principles of varṇāśrama-dharma one can satisfy the Supreme Lord. When the Lord is satisfied, the performer of sacrifices is elevated to the platform of devotional service.
(Srimad Bhagavatam-----4:20:28-----purport).

In the Viṣṇu Purāṇa it is said that the entire varṇāśrama institution is meant to satisfy the Supreme Personality of Godhead. The rules and regulations set up for the execution of the duties of brāhmaṇas, kṣatriyas, vaiśyas and śūdras or brahmacārīs, gṛhasthas, vānaprasthas and sannyāsīs are all meant to satisfy the Supreme Lord. At the present moment, although the so-called brāhmaṇas, kṣatriyas, vaiśyas and śūdras have lost their original culture, they claim to be brāhmaṇas, kṣatriyas, vaiśyas and śūdras by birthright. Yet they have rejected the proposition that such social and spiritual orders are especially meant for worship of Lord Viṣṇu.
(Srimad Bhagavatam-----4:21:27-----purport).

The performer of sacrifices must always keep in view that the sacrifices mentioned in the Vedas are meant to satisfy the Supreme Personality of Godhead. Viṣṇur ārādhyate panthāḥ (Viṣṇu Purāṇa 3.8.9). Anything material or spiritual done for the satisfaction of the Supreme Lord is understood to be an actual yajña, and by performing such yajñas one gets liberation from material bondage.
(Srimad Bhagavatam-----4:21:34-----purport).

The Supreme Personality of Godhead, the ancient, eternal Godhead, who is foremost amongst all great personalities, obtained the opulence of His staunch reputation, which purifies the entire universe, by worshiping the lotus feet of those brāhmaṇas and Vaiṣṇavas.
The Supreme Person is described herein as brahmaṇya-deva. Brahmaṇya refers to the brāhmaṇas, the Vaiṣṇavas or the brahminical culture, and deva means "worshipable Lord." Therefore unless one is on the transcendental platform of being a Vaiṣṇava or on the highest platform of material goodness (as a brāhmaṇa), he cannot appreciate the Supreme Personality of Godhead. In the lower stages of ignorance and passion, it is difficult to appreciate or understand the Supreme Lord. Therefore the Lord is described herein as the worshipable Deity for persons in brahminical and Vaiṣṇava culture.
namo brahmaṇya-devāya
go-brāhmaṇa-hitāya ca
jagad-dhitāya kṛṣṇāya
govindāya namo namaḥ
(Viṣṇu Purāṇa 1.19.65)
Lord Kṛṣṇa, the Supreme Personality of Godhead, is the prime protector of brahminical culture and the cow. Without knowing and respecting these, one cannot realize the science of God, and without this knowledge, any welfare activities or humanitarian propaganda cannot be successful.
(Srimad Bhagavatam-----4:21:38-----translation and purport).

The worshipers of various demigods also worship the Supreme Lord, but they do so against the regulative principles. The purpose of the regulative principles is to satisfy Lord Viṣṇu. In theViṣṇu Purāṇa (3.8.9) the very same thing is confirmed:
varṇāśramācāravatā
puruṣeṇa paraḥ pumān
viṣṇur ārādhyate panthā
nānyat tat-toṣa-kāraṇam
(CC.2:8:58)
Here it is clearly mentioned that the karmī, jñānī or yogī—in fact, everyone—worships Lord Viṣṇu if he is actually expert in knowledge of the Vedas and Tantras.
(Srimad Bhagavatam-----4:24:62-----purport).

Just as sparks manifest in a large fire, similarly the small individual souls are present in the big spiritual flame. In Bhagavad-gītā (9.4) Lord Kṛṣṇa says, mat-sthāni sarva-bhūtāni na cāhaṁ teṣv avasthitaḥ: "All beings are in Me, but I am not in them." Although all living beings are resting in Him, as small fiery sparks rest on a large flame, both are differently situated. Similarly, in the Viṣṇu Purāṇa it is said:
eka-deśa-sthitasyāgner
jyotsnā vistāriṇī yathā
parasya brahmaṇaḥ śaktis
tathedam akhilaṁ jagat
"Fire is situated in one place, but it distributes heat and light. Similarly, the Supreme Personality of Godhead is distributing His energies in different ways." The living entity is but one of these energies (marginal energy). The energy and the energetic are one in one sense, but they are differently situated as energy and the energetic.
(Srimad Bhagavatam-----4:28:63-----purport).

The varṇāśrama system is scientific. Therefore if we accept the divisions of varṇa and āśrama according to the Vedic instructions, our lives will be successful. Unless human society is thus divided and arranged, it cannot be perfect. As stated in the Viṣṇu Purāṇa (3.8.9):
varṇāśramācāravatā
puruṣeṇa paraḥ pumān
viṣṇur ārādhyate panthā
nānyat tat-toṣa-kāraṇam
(CC.2:8:58)
"The Supreme Personality of Godhead, Lord Viṣṇu, is worshiped by the proper execution of prescribed duties in the system of varṇa and āśrama. There is no other way to satisfy the Supreme Personality of Godhead. One must be situated in the institution of the four varṇas and āśramas."
(Srimad Bhagavatam-----5:1:14-----purport).

In this verse the Lord is described as Uttamaśloka. Uttama means "the best," and śloka means "reputation." Lord Kṛṣṇa is full in six opulences, one of which is reputation. Aiśvaryasya samagrasya vīryasya yaśasaḥ śriyaḥ (Viṣṇu Purāṇa 6.5.47). Kṛṣṇa's reputation is still expanding. We are spreading the glories of Kṛṣṇa by pushing forward this Kṛṣṇa consciousness movement. Kṛṣṇa's reputation, five thousand years after the Battle of Kurukṣetra, is still expanding throughout the world.
(Srimad Bhagavatam-----5:14:43-----purport).