dhmātaṁ punaḥ svaṁ bhajate ca rūpam
ātmā ca karmānuśayaṁ vidhūya
mad-bhakti-yogena bhajaty atho mām
According to Śrīla Viśvanātha Cakravartī Ṭhākura, this verse indicates that the devotee goes back home, back to Godhead, and there worships Lord Kṛṣṇa in his original spiritual body, which is compared to the original pure form of smelted gold. Gold alloyed with inferior metals cannot be purified by water and soap; similarly, the heart’s impurities cannot be removed by superficial processes. Only the fire of love of Godhead can cleanse one’s soul and send one back home, back to Godhead, to engage in eternal loving service to the Lord.