Srimad Bhagavatam Canto 02, Chapter 10, Text 17

SB 2.10.17

pranenaksipata ksut trd
antara jayate vibhoh
pipasato jaksatas ca
pran mukham nirabhidyata
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The living force, being agitated by the virat-purusa, generated hunger and thirst, and when He desired to drink and eat, the mouth opened.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The process by which all living beings in the womb of the mother develop their sense organs and sense perceptions appears to follow the same principles in the case of the virat-purusa, the sum total of all living entities. Therefore the supreme cause of all generation is not impersonal or without desire. The desires for all kinds of sense perception and sense organs exist in the Supreme, and thus they take place in the individual persons. This desire is the nature of the supreme living being, the Absolute Truth. Because He has the sum total of all mouths, the individual living entities have mouths. Similarly with all other senses and sense organs. Here the mouth is the symbolic representation of all sense organs, for the same principles apply to the others also.
Srimad Bhagavatam Canto 02, Chapter 10, Text 16
Srimad Bhagavatam Canto 02, Chapter 10, Text 18