Persons who cultivate knowledge for liberation are of three kinds: those who simply desire liberation, those who are liberated already, even while in this material existence, and those who are actually self-realized. There are many persons in this world who desire liberation, and sometimes they engage in devotional service for this purpose. It is corroborated in Śrīmad-Bhāgavatam (1.2.26) that those who actually desire liberation give up all kinds of demigod worship and, without envy, concentrate their minds in the worship of Nārāyaṇa, the Supreme Personality of Godhead. When such persons come in contact with a pure devotee, they engage in the devotional service of Kṛṣṇa and give up the idea of liberation. A verse in the Hari-bhakti-sudhodaya states:
- aho mahātman bahu-doṣa-duṣṭo
- ’py ekena bhāty eṣa bhavo guṇena
- sat-saṅgamākhyena sukhāvahena
- kṛtādya no yena kṛśā mumukṣā ete ’linas
"O great soul, although there are many flaws within this miserable life, there is yet one glory—the association of pure devotees. Cultivate such association. By it our desire for liberation diminishes."
In Śrīmad-Bhāgavatam (11.2.37) it is stated that man's fear is due to his material conception of life and to his forgetting his eternal relationship with the Supreme Lord. Consequently he finds himself having only perverted memories. This occurs due to the spell of material energy. One who has sufficient intelligence will engage in full devotional service and regard the Supreme Lord as his spiritual master and worshipable God. The conclusion is that no one can attain a revolution in consciousness without engaging in devotional service to the Lord. When one is actually free from material contamination, he can fully engage himself in Kṛṣṇa consciousness.
In Śrīmad-Bhāgavatam (10.14.4) it is clearly said that one who engages in spiritual life to understand things as they are but who lacks all intention of engaging in Kṛṣṇa consciousness simply achieves trouble for his undertaking. There is no substance to his life. Every living entity is part and parcel of the Supreme Lord, and therefore it is the duty of every living entity to serve that supreme whole. Without such service, the living entity falls into material contamination.
Lord Caitanya concluded His teachings to Sanātana Gosvāmī by pointing out that the six kinds of ātmārāmas, or transcendentalists, engage in some kind of devotional service to Kṛṣṇa. In other words, at some time or another all the transcendentalists ultimately come to understand the necessity of rendering devotional service to Kṛṣṇa and become fully Kṛṣṇa conscious. Even if one is very learned or extravagant, he can still engage in the devotional service of the Lord.
The six kinds of transcendentalists are the neophyte transcendentalist, the absorbed transcendentalist, one who is situated in transcendence, one who desires liberation, one who is actually liberated, and one who is engaged in activities in his constitutional position. All of these are ātmārāmas. When a person becomes an ātmārāma, or a great thinker in Kṛṣṇa consciousness, he fully engages in devotional service. According to the grammatical rules, there are many kinds of ātmārāmas, but one sense of the word is sufficient to represent the others. In the collective sense, all the ātmārāmas are inclined to worship the Supreme Lord, Kṛṣṇa.
The mystic who worships the Supersoul within himself is also an ātmārāma. The ātmārāma yogīs are of two kinds: sagarbha and nigarbha. It is stated in Śrīmad-Bhāgavatam (2.2.8): "Some yogīs meditate within their heart on the localized Viṣṇu, who is four-handed and who holds four symbols: conch, disc, mace and lotus." The yogī who thinks of the four-handed Viṣṇu becomes absorbed in devotional ecstasy and shows the symptoms of that state. Sometimes he cries, and sometimes he feels separation from the Lord. In this way he merges in transcendental bliss, resulting in his becoming entrapped like a fish.
The sagarbha and nigarbha yogīs can be further divided into three categories: the beginner, the advanced yogī, and he who has attained perfection. These yogīs are described in the Sixth Chapter of the Bhagavad-gītā. Those who are trying to ascend the path of mystic yoga are called ārurukṣu-yogīs, beginners. In ārurukṣu yoga, one practices various sitting postures and concentrates the mind. One ascends the path of yoga by means of meditation and detachment, and when one is no longer attached to working for sense gratification, he gradually becomes free. At that time he attains a state of ecstasy called yogārūḍha. If such a mystic yogī somehow or other comes in contact with a saintly person, he becomes a devotee of Kṛṣṇa.