Only self-realization, by attainment of the above high qualifications of Vedic wisdom, austerity, etc., can help one on the path of devotional service. But failing in devotional service, one remains still imperfect because even in that position of self-realization one cannot factually know the Supreme Lord. By self-realization, one is qualified to become a devotee, and the devotee, by service mood (bhaktya) only, can gradually know the Personality of Godhead. One should not, however, misunderstand the import of visate ("enters into") as referring to merging into the existence of the Supreme. Even in material existence, one is merged in the existence of the Lord. No materialist can disentangle self from matter, for the self is merged in the external energy of the Lord. As no layman can separate butter from milk, no one can extricate the merged self from matter by acquiring some material qualification. This visate by devotion (bhaktya) means to be able to participate in the association of the Lord in person. Bhakti, or devotional service to the Lord, means to become free from material entanglement and then to enter into the kingdom of God, becoming one like Him. Losing one's individuality is not the aim of bhakti-yoga or of the devotees of the Lord. There are five types of liberation, one of which is called sayujya-mukti, or being merged into the existence or body of the Lord. The other forms of liberation maintain the individuality of the particle soul and involve being always engaged in the transcendental loving service of the Lord. The word visate, used in the verses of the Bhagavad-gita, is thus meant for the devotees who are not at all anxious for any kind of liberation. The devotees are satisfied simply in being engaged in the service of the Lord, regardless of the situation.