Śrīmad-Bhāgavatam · Text 11.3.39
Who is speaking and story frame
अण्डेषु पेशिषु तरुष्वविनिश्चितेषु
प्राणो हि जीवमुपधावति तत्र तत्र ।
सन्ने यदिन्द्रियगणेऽहमि च प्रसुप्ते
कूटस्थ आशयमृते तदनुस्मृतिर्न: ॥ ३९ ॥
aṇḍeṣu peśiṣu taruṣv aviniściteṣu
prāṇo hi jīvam upadhāvati tatra tatra
sanne yad indriya-gaṇe ’hami ca prasupte
kūṭa-stha āśayam ṛte tad-anusmṛtir naḥ
The spirit soul is born in many different species of life within the material world. Some species are born from eggs, others from embryos, others from the seeds of plants and trees, and others from perspiration. But in all species of life the prāṇa, or vital air, remains unchanging and follows the spirit soul from one body to another. Similarly, the spirit soul is eternally the same despite its material condition of life. We have practical experience of this. When we are absorbed in deep sleep without dreaming, the material senses become inactive, and even the mind and false ego are merged into a dormant condition. But although the senses, mind and false ego are inactive, one remembers upon waking that he, the soul, was peacefully sleeping.
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.