BG 15.4

15.4 ततः then? पदम् goal? तत् That? परिमार्गितव्यम् should be sought for? यस्मिन् whither? गताः gone? न not? निवर्तन्ति return? भूयः again? तम् that? एव even? च and? आद्यम् primeval? पुरुषम् Purusha? प्रपद्ये I seek refuge? यतः whence? प्रवृत्तिः activity or energy? प्रसृता streamed forth? पुराणी ancient.Commentary That which fills the whole world with the form of ExistenceKnowledgeBliss is Purusha. Or? that which sleeps in this Puri (city) of the body is the Purusha.Singleminded devotion which consists of ceaselessly thinking of or meditating on the Supreme Being is the sure means of attaining Selfrealisation. Taking sole refuge in the Primeval Purusha is the means to know or realise that supreme goal goind whither the wise do not return again to this world of death.The aspirant should know the abode of Vishnu. He should struggle hard to reach it. He should seek it by taking refuge in the Primeval Purusha. If he reaches this immortal abode of Vishnu or the imperishable Brahmic seat of ineffable splendour and glory he will never return to this mortal world.The Primeval Purusha or the pure? Supreme Being Who is ExistenceKnowledgeBliss Absolute is the goal or the supreme abode or the abode of Vishnu. Just as illusory objects like elephants? horses? etc.? come forth through the jugglery of the magician? so also this ancient energy or the original divine power or emanation of this tree or illusory Samsara has streamed forth from that Primeval Purusha.What sort of persons reach that goal eternal Listen.

— vedicscriptures · exposition · source ↗

It is now clearly stated that the real form of this banyan tree cannot be understood in this material world. Since the root is upwards, the extension of the real tree is at the other end. When entangled with the material expansions of the tree, one cannot see how far the tree extends, nor can one see the beginning of this tree. Yet one has to find out the cause. “I am the son of my father, my father is the son of such-and-such a person, etc.” By searching in this way, one comes to Brahmā, who is generated by the Garbhodaka-śāyī Viṣṇu. Finally, in this way, when one reaches the Supreme Personality of Godhead, that is the end of research work. One has to search out that origin of this tree, the Supreme Personality of Godhead, through the association of persons who are in knowledge of that Supreme Personality of Godhead. Then by understanding one becomes gradually detached from this false reflection of reality, and by knowledge one can cut off the connection and actually become situated in the real tree. The word asaṅga is very important in this connection because the attachment for sense enjoyment and lording it over the material nature is very strong. Therefore one must learn detachment by discussion of spiritual science based on authoritative scriptures, and one must hear from persons who are actually in knowledge. As a result of such discussion in the association of devotees, one comes to the Supreme Personality of Godhead. Then the first thing one must do is surrender to Him. The description of that place whence having gone one never returns to this false reflected tree is given here. The Supreme Personality of Godhead, Kṛṣṇa, is the original root from whom everything has emanated. To gain the favor of that Personality of Godhead, one has only to surrender, and this is a result of performing devotional service by hearing, chanting, etc. He is the cause of the extension of the material world. This has already been explained by the Lord Himself. Ahaṁ sarvasya prabhavaḥ: “I am the origin of everything.” Therefore to get out of the entanglement of this strong banyan tree of material life, one must surrender to Kṛṣṇa. As soon as one surrenders unto Kṛṣṇa, one becomes detached automatically from this material extension.

— vedicscriptures · exposition · source ↗