Text 61]
Talks Between Nārada and King Prācīnabarhi
1445
how the gross body is changing. The materialistic philosopher Darwin has tried to study the changes of the gross body, but because he had no knowledge of either the subtle body or the soul, he could not clearly explain how the evolutionary process is going on. One may change the gross body, but he works in the subtle body. People cannot understand the activities of the subtle body, and consequently they are bewildered as to how the actions of one gross body affect another gross body. The activities of the subtle body are also guided by the Supersoul, as explained in  Bhagavad-gītā :
sarvasya cāham hṛdi sanniviṣṭo mattaḥ smṛtir jñānam apohanam ca vedaiś ca sarvair aham eva vedyo vedānta-kṛd veda-vid eva cāham
“I am seated in everyone’s heart, and from Me come remembrance, knowledge and forgetfulness. By all the  Vedas , I am to be known; indeed I am the compiler of  Vedānta , and I am the knower of the  Vedas .” (Bg. 15.15)
Because the Supreme Personality of Godhead as Supersoul is always guiding the individual soul, the individual soul always knows how to act according to the reactions of his past  karma . In other words, the Supersoul reminds him to act in such a way. Therefore although there is apparently a change in the gross body, there is a continuation between the lives of an individual soul.
TEXT 61
शयानमिममुत्सृज्य श्वसन्तं पुरुषो यथा ।
कर्मात्मन्याहितं भुङ्क्ते तादृशेनेतरेण वा ॥६१॥
śayānam imam utsṛjya śvasantam puruṣo yathā karmātmany āhitam bhuṅkte tādṛśenetareṇa vā
śayānam —lying down on a bed;  imam —this body;  utsṛjya —after giving up;  śvasantam —breathing;  puruṣaḥ —the living entity;  yathā —as;  karma —activity;  ātmani —in the mind;  āhitam —executed;  bhuṅkte —enjoys;  tādṛśena —by a similar body;  itareṇa —by a different body;  vā —or.