|Chapter 15||Realization of the Ultimate Truth||Verse 14|
Rudra Vaisnava Sampradaya:
Continuing on Lord Krishna affirms that His potency is vaisvanara or the digestive fire within the physical body that combing with the prana or exhalation and the apana or inhalation digests the four types of food eaten by jivas or embodied beings which are chewed, sucked, licked or drank. The first is that which is chewed by masticating the food into small pieces so it can be swallowed such as bread and vegetables. Next is that which can be licked by the tongue and swallowed without chewing like honey or molasses. After is that which can be sucked like the juice within sugarcane and finally is that which can be swallowed without chewing such as soups and liquid beverages. Hence they are all different.
Brahma Vaisnava Sampradaya:
The Supreme Lord Krishna discloses that He is abiding in the physical body as the fire of digestion known as vaisvanarah assisting in the sustenance of all jivas or embodied beings.
Sri Vaisnava Sampradaya:
Lord Krishna declares that He is vaisvanara the digestive fire which joins together with the vital breaths of prana or exhalation and apana or inhalation. Together they digest in the stomach the four kinds of food which are foods that are khadva or chewed, soshva or sucked, lehya or licked and peya or drank. In these last three verses Lord Krishna is specifying integral functions of the jivas or embodied beings and of the Earth that are manifestations of His opulent glories. The expressions that He becomes the light of the sun, moon and fire etc. are meant to indicate the predicated relationship that theses object have in regard to Him. That fact that such realtionships exist in reference to all things is substantiated in the next verse.
Kumara Vaisnava Sampradaya:
Lord Krishna abides within the physical bodies of all jivas or embodied beings as vaisvanara the digestive fire which joining with the vital airs of prana or exhalation and apana or inhalation, digest the four kinds of food that are chewed, sucked, licked and drank. This is also confirmed in the Brhadaranyaka Upanisad V.IX.I beginning ayamagnirvaisvanaro yo ayamantah puruse meaning: From the purusa or Supreme Lord comes the fire of digestion known as vaisvanara by which food that is eaten is digested.