Actually the living being has no connection with this material enjoyment nor with lusty desires. He is simply imagining or dreaming while asleep. But by the association of pure devotees, he is awakened, and immediately the spirit soul is situated in his own glory by understanding his constitutional position as the eternal servant of the Lord.
(Srimad Bhagavatam-----4:22:20-----purport).

As said in Śrīmad-Bhāgavatam (2.10.6), mukti (liberation) means svarūpeṇa vyavasthitiḥ—being situated in one's own constitutional position. All material desires are present as long as one is in the bodily concept of life, but when one realizes that he is an eternal servant of Kṛṣṇa, his desires are no longer material. A devotee acts in this consciousness. In other words, when material desires in connection with the body are finished, one is actually liberated.
(Srimad Bhagavatam-----4:22:27-----purport).

Jñāna, or knowledge, means to understand one's constitutional position, and vijñāna refers to practical application of that knowledge in life. In the human form of life, one should come to the position of jñāna and vijñāna, but despite this great opportunity if one does not develop knowledge and practical application of knowledge through the help of a spiritual master and the śāstras—in other words, if one misuses this opportunity—then in the next life he is sure to be born in a species of nonmoving living entities.
(Srimad Bhagavatam-----4:22:23-----purport).

Mukti, or liberation, means becoming free from the results of fruitive activities. As stated in Śrīmad-Bhāgavatam (2.10.6): muktir hitvānyathā-rūpam. Mukti means giving up all other activities and being situated in one's constitutional position (svarupeṇa vyavasthitiḥ). In this conditional state, we are entangled by one fruitive activity after another. Karma-bandhana means "the bonds of fruitive activity." As long as one's mind is absorbed in fruitive activities, he has to manufacture plans for happiness.
(Srimad Bhagavatam-----4:24:78-----purport).

In the human form of life one should become a brāhmaṇa, which means that one should understand the constitutional position of the Absolute Truth, Brahman, and then engage in His service as a Vaiṣṇava.
(Srimad Bhagavatam-----4:28:7-----purport).

The living entity is, after all, part and parcel of the Supreme Spirit, Kṛṣṇa. In other words, Kṛṣṇa's constitutional position and the living entity's constitutional positionare the same qualitatively. The only difference is that the living entity is eternally an atomic particle of the Supreme Spirit.
(Srimad Bhagavatam-----4:28:20-----purport).

Because of associating with the modes of nature, the living entity gets a variety of bodies from the 8,400,000 forms. It is clearly explained herein that the living entity has a little independence, indicated by the word sva-dṛk, meaning "one who can see his own welfare." The living entity's constitutional position is very minute, and he can be misled in his choice. He may choose to imitate the Supreme Personality of Godhead.
(Srimad Bhagavatam-----4:29:26-----purport).

Only when he comes in contact with the bona fide spiritual master can he understand his real constitutional position. He then becomes disgusted with material existence. At that time, in full Kṛṣṇa consciousness, he regrets his past experiences in material existence. This regret is very beneficial because it purifies the living entity of material, conditional life.
(Srimad Bhagavatam-----4:29:29-----purport).

For a deer to run after a mirage of water in the desert is not unusual. The deer is also very fond of sex. The conclusion is that one who lives like a deer will be killed in due course of time. Vedic literatures therefore advise that we should understand our constitutional position and take to devotional service before death comes.
(Srimad Bhagavatam-----4:29:53-----purport).

Materialistic life means forgetting one's constitutional position as the eternal servant of Kṛṣṇa, and this forgetfulness is especially enhanced in the gṛhastha-āśrama. In the gṛhastha-āśrama a young man accepts a young wife who is very beautiful in the beginning, but in due course of time, after giving birth to many children and becoming older and older, she demands many things from the husband to maintain the entire family. At such a time the wife becomes detestable to the very man who accepted her in her younger days.
(Srimad Bhagavatam-----4:29:54-----purport).

When we engage ourselves in the devotional service of the Lord to become Kṛṣṇa conscious, we understand not only Kṛṣṇa but everything related to Kṛṣṇa. In other words, through Kṛṣṇa consciousness we can understand not only Kṛṣṇa and the cosmic manifestation but also our constitutional position.
(Srimad Bhagavatam-----4:29:79-----purport).

The human form of life is especially meant for getting out of the bondage of fruitive activities, but as long as one is forgetful of his life's mission and acts like an ordinary animal—eating, sleeping, mating and defending—he must continue his conditioned life of material existence. Such a life is called svarūpa-vismṛti, forgetfulness of one's real constitutional position. Therefore in Vedic civilization one is trained in the very beginning of life as a brahmacārī.
(Srimad Bhagavatam-----5:1:1-----purport).

Our actual duty is to carry out the supreme order of the Personality of Godhead. If we are fixed in our determination to carry out the supreme order of the Lord, we are always secure, regardless of where we are situated, whether in hell or in heaven. Herein the words prakṛtiṁ bhajasva are very significant. Prakṛtim refers to one's constitutional position. Every living entity has the constitutional position of being an eternal servant of God.
(Srimad Bhagavatam-----5:1:19-----purport).

One must understand his constitutional position and the constitutional position of the Supreme Lord as well. Both have the same spiritual identity. Maintaining oneself as a servant of the Supreme Lord, one should avoid rebirth in this material world. If one keeps himself spiritually fit and thinks of himself as an eternal servant of the Supreme Lord, he will be successful at the time he has to give up the material body.
(Srimad Bhagavatam-----5:6:6-----purport).

For a devotee, mukti is not a very great achievement. Mukti means being situated in one's constitutional position. The constitutional position of every living being is that of the Lord's servant; therefore when a living entity is engaged in the Lord's loving service, he has already attained mukti. Consequently a devotee does not aspire for mukti, even if it is offered by the Supreme Lord Himself.
(Srimad Bhagavatam-----5:6:17-----purport).

Śrīla Madhvācārya says:
yasya samyag bhagavati
jñānaṁ bhaktis tathaiva ca
niścintas tasya mokṣaḥ syāt
sarva-pāpa-kṛto 'pi tu
"For one who very seriously practices devotional service during his lifetime in order to understand the constitutional position of the Supreme Personality of Godhead, liberation from this material world is guaranteed, even if he has previously been addicted to sinful habits."
(Srimad Bhagavatam-----5:19:13-----purport).

When devotional service is present in one's heart, desires to perform sinful activities have no place there. Sinful life is due to ignorance, which means forgetfulness of one's constitutional position as an eternal servant of God, but when one is fully Kṛṣṇa conscious he realizes that he is God's eternal servant.
In this regard, Śrīla Jīva Gosvāmī comments that bhakti may be divided into two divisions: (1) santatā, devotional service that continues incessantly with faith and love, and (2) kādācitkī, devotional service that does not continue incessantly but is sometimes awakened. Incessantly flowing devotional service (santatā) may also be divided into two categories: (1) service performed with slight attachment and (2) spontaneous devotional service. Intermittent devotional service (kādācitkī) may be divided into three categories: (1) rāgābhāsamayī, devotional service in which one is almost attached, (2) rāgābhāsa-śūnya-svarūpa-bhūtā, devotional service in which there is no spontaneous love but one likes the constitutional position of serving, and (3) ābhāsa-rūpā, a slight glimpse of devotional service. As for atonement, if one has caught even a slight glimpse of devotional service, all needs to undergo prāyaścitta, atonement, are superseded. Therefore atonement is certainly unnecessary when one has achieved spontaneous love and, above that, attachment with love, which are signs of increasing advancement in kādācitkī.
(Srimad Bhagavatam-----6:1:15-----purport).

Antavanta ime dehā nityasyoktāḥ śarīriṇaḥ: the body is perishable, but the soul within the body is imperishable. Therefore the duty of those advanced in knowledge in human society is to study the constitutional position of the imperishable soul and not waste the valuable time of human life in merely maintaining the body and not considering life's real responsibility.
(Srimad Bhagavatam-----7:2:58-----purport).

One should know that he is a spirit soul (ahaṁ brahmāsmi) and that the constitutional position of the soul is unaffected by the changes of the body. In all circumstances, everyone, as a spirit soul, must be a devotee of Lord Viṣṇu and should not be concerned with bodily relationships, whether with friends or with enemies. One should know that neither we ourselves nor our enemies in the bodily conception of life are ever killed.
(Srimad Bhagavatam-----7:2:60-----purport).

The real vidvān is one who tries to understand his own position within this material world. For example, when Sanātana Gosvāmī submitted to the lotus feet of Śrī Caitanya Mahāprabhu, his first question was 'ke āmi', 'kene āmāya jāre tāpa-traya'. In other words, he wanted to know his constitutional position and why he was suffering from the threefold miseries of material existence. This is the process of education. If one does not ask, "Who am I? What is the goal of my life?" but instead follows the same animal propensities as cats and dogs, what is the use of his education?
(Srimad Bhagavatam-----7:6:16-----purport).

The living entity's evolution through different types of bodies is conducted automatically by the laws of nature in bodies other than those of human beings. In other words, by the laws of nature (prakṛteḥ kriyamāṇāni (B.G.3:27) the living entity evolves from lower grades of life to the human form. Because of his developed consciousness, however, the human being must understand the constitutional position of the living entity and understand why he must accept a material body. This chance is given to him by nature, but if he nonetheless acts like an animal, what is the benefit of his human life? In this life one must select the goal of life and act accordingly. Having received instructions from the spiritual master and the śāstra, one must be sufficiently intelligent. In the human form of life, one should not remain foolish and ignorant, but must inquire about his constitutional position. This is called athāto brahma jijñāsā. The human psychology gives rise to many questions, which various philosophers have considered and answered with various types of philosophy based upon mental concoction.
(Srimad Bhagavatam-----7:7:47-----purport).

A pure devotee is actually learned because he knows his constitutional position, he knows the position of the Supreme Personality of Godhead, and he knows the relationship between the living entity and the Supreme Lord. Thus he has full spiritual knowledge and is automatically liberated (brahma-bhūtaḥ). He can therefore see everyone on the spiritual platform. He can comprehend the happiness and distress of all living entities. He understands that what is happiness to him is also happiness to others and that what is distress to him is distressing for others. Therefore he is sympathetic to everyone.
(Srimad Bhagavatam-----9:4:66-----purport).