Śrīmad-Bhāgavatam · Text 11.15.23
Who is speaking and story frame
परकायं विशन् सिद्ध आत्मानं तत्र भावयेत् ।
पिण्डं हित्वा विशेत् प्राणो वायुभूत: षडङ्घ्रिवत् ॥ २३ ॥
para-kāyaṁ viśan siddha
ātmānaṁ tatra bhāvayet
piṇḍaṁ hitvā viśet prāṇo
vāyu-bhūtaḥ ṣaḍaṅghri-vat
When a perfect yogī desires to enter another’s body, he should meditate upon himself within the other body, and then, giving up his own gross body, he should enter the other’s body through the pathways of air, as easily as a bee leaves one flower and flies into another.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.