BG Chap 14 - The best among processes of attaining knowledge
Having examined and drawn conclusions about the natures of jīvas and prakṛti which are mixed together, one should become liberated from the bondage of prakṛti by becoming endowed with certain qualities such as pridelessness (amānitva). The cause of bondage is the association with the guṇas as explained in the previous chapter. The Lord said He would speak knowledge concerning the guṇas, and that this knowledge is the best among all topics related to jīva and prakṛti. Realizing this all sages attained a true understanding of the ātmā and reached the supreme perfection. The Lord would describe again in a different way the process by which one gains knowledge. Among the processes of attaining knowledge, what Kṛṣṇa would speak now is the most excellent because it contains all other practices.
Kṛṣṇa further glorifies this knowledge saying that by realizing it thru guru, one can attain qualities and form similar to the Lord. Thus established, one does not take rebirth in this world, and does not experience pain at the time of death. They are liberated being freed from the karma of taking birth and dying. The fact that many had attained this liberation indicates that in liberation there are many jīvas. It is understood from Vedic literature that the liberated souls who have reached the transcendental planets of the spiritual sky always look to the lotus feet of the Supreme Lord, being engaged in His transcendental loving service. So, even after liberation, the devotees do not lose their individual identities.