The Supreme Personality of Godhead is full in six opulences. His position is unique, for He possesses all riches, strength, influence, beauty, knowledge and renunciation. Brahman means the greatest, but the Supreme Personality of Godhead is greater than the greatest, just as the sun globe is greater than the sunshine, which is all-pervading in the universe. Although the sunshine that spreads all over the universes appears very great to the less knowledgeable, greater than the sunshine is the sun itself, and greater than the sun is the sun-god. Similarly, impersonal Brahman is not the greatest, although it appears to be so.
(Sri Caitanya Caritamrta-----1:7:140-----purport).

The potency of Kṛṣṇa that is spread everywhere is impersonal, just as the sunlight is the impersonal expansion of the sun globe and the sun-god. If we simply take one side of the Supreme Personality of Godhead—His impersonal effulgence—that one side does not fully explain the Absolute Truth. Impersonal appreciation of the Absolute Truth is one-sided and incomplete. One should also accept the other side, the personal side—Bhagavān.
(Sri Caitanya Caritamrta-----2:25:33-----purport).

Although Brahman, Paramātmā and Bhagavān are the same-and-one Absolute Truth, devotees like Kaṁsa or Śiśupāla could attain only to the Brahman effulgence. They could not have realization of Paramātmā or Bhagavān. That is the distinction. An analogy can be given with the sun globe and the sunshine: to remain in the sunshine does not mean one has gone to the sun globe. The temperature of the sun globe is different from the temperature of the sunshine. One who has gone through the sunshine in jet planes or in spaceships has not necessarily gone to the sun globe. Although the sunshine and the sun globe are actually one and the same, still there is a distinction, for one is the energy and one is the energetic source. The Absolute Truth and His bodily effulgence are in the same way simultaneously one and different.
(Nectar of Devotion).

A person who acts exactly according to the tenets of scripture is called śāstra-cakṣus. Śāstra-cakṣus means one who sees through the eyes of the authorized scriptures. Actually, any man of knowledge and experience should see everything through these books. For example, with our naked eye we perceive the sun globe simply as some glaring substance, but when we see through authorized books of science and other literature, we can understand how much greater the sun globe is than this earth and how powerful it is. So seeing things through the naked eye is not actually seeing. Seeing things through the authorized books or authorized teachers is the correct way to see.
(Nectar of Devotion).

For the impersonalists and the enemies of Kṛṣṇa, liberation means merging into the Supreme. The demons and the impersonalists do not care for Kṛṣṇa, but Kṛṣṇa is so kind that He gives this liberation even to His enemies and to the impersonalists. There is the following statement in this connection: "O Murāri [Kṛṣṇa]! How wonderful it is that although the demons, who were always envious of the demigods, have failed to penetrate Your military phalanx, they have penetrated the region of mitra, the sun globe." The word mitra is used metaphorically. Mitra means "the sun globe," and mitra also means "friend." The demons who opposed Kṛṣṇa as enemies wanted to penetrate His military phalanx, but instead of doing this, they died in battle, and the result was that they penetrated the planet of Mitra, or the sun planet. In other words, they entered into the Brahman effulgence.
(Nectar of Devotion).

“One has to understand Your appearance with great intelligence because the material energy is also emanating from You. You are the original source of the material energy, just as the sun is the source of the sunshine. The sunshine cannot cover the sun globe, nor can the material energy—being an emanation from You—cover You. You appear to be in the three modes of material energy, but actually the three modes of material energy cannot cover You. This is understood by the highly intellectual philosophers. In other words, although You appear to be within the material energy, You are never covered by it.”
(Krsna Book).

The fact is that those who are always engaged in Kṛṣṇa consciousness and mature, pure devotional service are given the chance, after death, to gain Kṛṣṇa’s association in one of the universes within the material world. Kṛṣṇa’s pastimes are continuously going on, either in this universe or in another universe. Just as the sun globe is passing over many places across this earthly planet, so kṛṣṇa-līlā, or the transcendental advent and pastimes of Kṛṣṇa, are also going on continuously, either in this or another universe.
(Krsna Book).

Once upon a time, Bāṇāsura came to offer his respects to Lord Śiva. By touching the lotus feet of Lord Śiva with his helmet, which was shining like the sun globe, he offered his obeisances unto him. While offering his respectful obeisances, Bāṇāsura said, “My dear lord, anyone who has not fulfilled his ambition will be able to do so by taking shelter of your lotus feet, which are just like a desire tree from which one can take anything he desires.
(Krsna Book).

As confirmed in the Bhagavad-gītā, the cause of the impersonal Brahman is Lord Kṛṣṇa. This Brahman effulgence is likened to the sunshine, which emanates from the sun globe. Therefore, impersonal Brahman is not the ultimate cause. The ultimate cause of everything is the supreme eternal form of Kṛṣṇa. All material actions and reactions take place in the impersonal Brahman, but in the personal Brahman, the eternal form of Kṛṣṇa, there is no action and reaction.
(Krsna Book).

The brahmajyoti is described in the Brahma-saṁhitā as the rays emanating from that supreme spiritual planet, Goloka Vṛndāvana, just as the sun's rays emanate from the sun globe. Until one surpasses the glare of the brahmajyoti, one cannot receive information of the land of the Lord. The impersonalist philosophers, blinded as they are by the dazzling brahmajyoti, can realize neither the factual abode of the Lord nor His transcendental form. Limited by their poor fund of knowledge, such impersonalist thinkers cannot understand the all-blissful transcendental form of Lord Kṛṣṇa. In this prayer, therefore, Śrī Īśopaniṣad petitions the Lord to remove the effulgent rays of the brahmajyoti so that the pure devotee can see His all-blissful transcendental form.
(Sri Isopanishad).

It is confirmed here that the concept of the Lord's all-pervasiveness is due to His illumination everywhere. We have experience that the sun is situated in one place, but the sunlight is diffused all around for millions and millions of miles. That is our practical experience. Similarly, although the supreme light is situated in His personal abode, Vaikuṇṭha or Vṛndāvana, His light is diffused not only in the spiritual world but beyond that. In the material world also, that light is reflected by the sun globe, and the sunlight is reflected by the moon globe. Thus although He is situated in His own abode, His light is distributed all over the spiritual and material worlds.
(Srimad Bhagavatam-----3:26:3-----purport).

The sunshine is light, the sun globe itself is light, and the sun-god is also light. However, the sunshine is not identical with the sun-god, Vivasvān. This is the meaning of simultaneously one and different (acintya-bhedābheda-tattva).
(Srimad Bhagavatam-----4:31:16-----purport).

The sun globe, which is a source of heat, extends for 10,000 yojanas (80,000 miles). The moon extends for 20,000 yojanas (160,000 miles), and Rāhu extends for 30,000 yojanas (240,000 miles). Formerly, when nectar was being distributed, Rāhu tried to create dissension between the sun and moon by interposing himself between them. Rāhu is inimical toward both the sun and the moon, and therefore he always tries to cover the sunshine and moonshine on the dark-moon day and full-moon night.
(Srimad Bhagavatam-----5:24:2-----translation).

The brain can act while we are awake or even while we are dreaming, but when we are fast asleep or unconscious the brain is inactive. Since the brain is a lump of matter, it does not have independent power with which to act. It can act only when favored by the influence of the Supreme Personality of Godhead, who is Brahman or Parabrahman. This is the way to understand how the Supreme Brahman, Kṛṣṇa, is present everywhere, just as the sunshine is present because of the sun-god in the sun globe. The Supreme Lord is called Hṛṣīkeśa; He is the only conductor of the senses. Unless empowered by His energy, our senses cannot act. In other words, He is the only seer, the only worker, the only listener, and the only active principle or supreme controller.
(Srimad Bhagavatam-----6:16:24-----purport).