BG Chap 13 - The various practices to realize Paramātmā
Some people perceive the Supersoul thru meditation (dhyāna). With pure consciousness, they realize the Lord situated in the mind, by meditation, with knowledge as a secondary element, and without help from any other process except bhakti. This is understood when Kṛṣṇa later says that only by devotion He is known (18.55). Others like the jñānīs see the Lord by knowledge (Sāṅkhya) with meditation as a secondary element, while the yogīs see the Lord by aṣṭāṅga-yoga (yoga) with knowledge as a secondary element. Still others see the Lord by niṣkāma-karma-yoga, with knowledge and meditation included in it. Although all these methods need some jñāna to realize the Paramātmā, they are not direct causes to realize Paramātmā. This is because the various practices are sāttvika in nature but the Lord is beyond the guṇas. Moreover, the Bhāgavatam (11.19.1) says that a self realized person should surrender unto the Lord both knowledge and the means by which he achieved it. Thus after giving up jñāna and becoming free from jñāna, one sees Paramātmā by bhakti alone.