Persons who are unknowledgeable falsely identify with gross material consciousness and are full of material designations. This body is a gift of the material nature, and one who is too much attached to the bodily consciousness is called manda, or a lazy person without understanding of spirit soul. Ignorant men think of the body as the self; they accept bodily connections with others as kinsmanship, the land in which the body is obtained is their object of worship, and they consider the formalities of religious rituals to be ends in themselves. Social work, nationalism and altruism are some of the activities for such materially designated persons. Under the spell of such designations, they are always busy in the material field; for them spiritual realization is a myth, and so they are not interested. Those who are enlightened in spiritual life, however, should not try to agitate such materially engrossed persons. Better to prosecute one's own spiritual activities silently. Such bewildered persons may be engaged in such primary moral principles of life as nonviolence and similar materially benevolent work.
(Bhagavad-Gita-----3:29-----purport).

The difference between a person in Kṛṣṇa consciousness and a person in bodily consciousness is that the former is attached to Kṛṣṇa whereas the latter is attached to the results of his activities. The person who is attached to Kṛṣṇa and works for Him only is certainly a liberated person, and he has no anxiety over the results of his work. In the Bhāgavatam, the cause of anxiety over the result of an activity is explained as being one's functioning in the conception of duality, that is, without knowledge of the Absolute Truth. Kṛṣṇa is the Supreme Absolute Truth, the Personality of Godhead. In Kṛṣṇa consciousness, there is no duality. All that exists is a product of Kṛṣṇa's energy, and Kṛṣṇa is all good. Therefore, activities in Kṛṣṇa consciousness are on the absolute plane; they are transcendental and have no material effect. One is therefore filled with peace in Kṛṣṇa consciousness.
(Bhagavad-Gita-----5:12-----purport).

Strutting with false pride, strength, anger, lust, and so on, the demons become totally absorbed in bodily consciousness, thinking "This is my body. I am Indian, Bengali, and so on. He is a Muslim; he is a Hindu; he is a German." In this way they perpetrate acts of violence on others. The Supreme Lord repeatedly puts these most abominable, wretched sinners into the most distressful conditions, constantly punishing them with His stringent laws of nature, or daivī māyā. Thus taking repeated births as demons, these reprobates can never appreciate the transcendental pastimes, names, beauty, and so on, of the Supreme Lord. Gradually cultivating the impersonal knowledge of the Absolute, they are destined to suffer the worst possible life.
(Renunciation through Wisdom).

In the condition of dreaming, when one's consciousness is almost covered, one may see many unfavorable things which cause disturbance or anxiety, but upon awakening, although he remembers what happened in the dream, he is not disturbed. Similarly the position of self-realization, or understanding of one's real relationship with the Supreme Lord, makes one completely satisfied, and the three modes of material nature, which are the cause of all disturbances, cannot affect him. In contaminated consciousness one sees everything to be for his own enjoyment, but in pure consciousness, or Kṛṣṇa consciousness, he sees that everything exists for the enjoyment of the supreme enjoyer. That is the difference between the dream state and wakefulness. The state of contaminated consciousness is compared to dream consciousness, and Kṛṣṇa consciousness is compared to the awakened stage of life. Actually, as stated in Bhagavad-gītā, the only absolute enjoyer is Kṛṣṇa. One who can understand that Kṛṣṇa is the proprietor of all the three worlds and that He is the friend of everyone is peaceful and independent. As long as a conditioned soul does not have this knowledge, he wants to be the enjoyer of everything; he wants to become a humanitarian or philanthropist and open hospitals and schools for his fellow human beings. This is all illusion, for one cannot benefit anyone by such material activities. If one wishes to benefit his fellow brother, he must awaken his dormant Kṛṣṇa consciousness. The Kṛṣṇa conscious position is that of pratibuddha, which means "pure consciousness."
(Srimad Bhagavatam-----3:27:25-----purport).

The words liṅgād vinirgame, which are used here, mean "after being freed from the two kinds of material bodies, subtle and gross." The subtle body is made of mind, intelligence, false ego and contaminated consciousness, and the gross body is made of five elements—earth, water, fire, air and ether. When one is transferred to the spiritual world, he gives up both the subtle and gross bodies of this material world. He enters the spiritual sky in his pure, spiritual body and is stationed in one of the spiritual planets. Although the impersonalists also reach that spiritual sky after giving up the subtle and gross material bodies, they are not placed in the spiritual planets; as they desire, they are allowed to merge in the spiritual effulgence emanating from the transcendental body of the Lord. The word sva-saṁsthānam is also very significant. As a living entity prepares himself, so he attains his abode. The impersonal Brahman effulgence is offered to the impersonalists, but those who want to associate with the Supreme Personality of Godhead in His transcendental form as Nārāyaṇa in the Vaikuṇṭhas, or with Kṛṣṇa in Kṛṣṇaloka, go to those abodes, wherefrom they never return.
(Srimad Bhagavatam-----3:27:28-29-----purport).

The following questions may be posed. As long as the liberated soul is in contact with the body, why don't the bodily activities affect him? Doesn't he actually become contaminated by the action and reaction of material activities? In answer to such questions, this verse explains that the material body of a liberated soul is taken charge of by the Supreme Personality of Godhead. It is not acting due to the living force of the living entity; it is simply acting as a reaction to past activities. Even after being switched off, an electric fan moves for some time. That movement is not due to the electric current, but is a continuation of the last movement; similarly, although a liberated soul appears to be acting just like an ordinary man, his actions are to be accepted as the continuation of past activities. In a dream one may see himself expanded through many bodies, but when awake he can understand that those bodies were all false. Similarly, although a liberated soul has the by-products of the body-children, wife, house, etc.—he does not identify himself with those bodily expansions. He knows that they are all products of the material dream. The gross body is made of the gross elements of matter, and the subtle body is made of mind, intelligence, ego and contaminated consciousness. If one can accept the subtle body of a dream as false and not identify oneself with that body, then certainly an awake person need not identify with the gross body. As one who is awake has no connection with the activities of the body in a dream, an awakened, liberated soul has no connection with the activities of the present body. In other words, because he is acquainted with his constitutional position, he never accepts the bodily concept of life.
(Srimad Bhagavatam-----3:28:38-----purport).

The living entity becomes bound up by the ropes of ignorance, duality, and illusion as soon as he sees this material world through the coloured crystal known as "me and mine." To nullify such false ego and contaminated consciousness, one must follow the process of buddhi-yoga, which is uncontaminated by the three modes of nature (ignorance, passion, and goodness). Otherwise superconsciousness is unattainable.
(Renunciation through Wisdom).