Holy Dialogue (Pravachana Vakhyalu):
April 12, 2014: The three fires which the householders exoterically worship in their houses are called garhapatya, anvaharyapachana and ahavaniya. These three sacrifices are internally constituted in the individual, in the act of this meditation. The Upanishad tells us that we have to perform a contemplative sacrifice construing the external ritual as an activity that is going on within ourselves. These fires are within the body of the Virat, the Vaishvanara Himself. And, inasmuch as we are inseparable from Vaishvanara, these fires are inside our own Self. So, when we offer food into the mouth, it is not an animal act that we are performing for the satisfaction of the bodily organism, but an ultimate impulse that is arising from the Universal Reality. Hunger is not merely a function of the stomach. It is not the alimentary canal functioning in the body merely. It is something wider than what we are, indicating that we are related to something vaster than what we seem to be from our points of view. In religious language, in scriptural parlance, Vaishvanara is the word used to describe the Ultimate Reality, and also for the fire that digests food. The internal fire that is responsible for the conversion of food into chyle etc., that which is responsible for the absorption of the elements of diet into our system, this inward heat is Vaishvanara. It is not the physical body alone that is working in digestion, because the physical body is visible even in a corpse but there is no such heat there. What has happened to the heat? That heat is not the heat of the physical fire; it is not the heat of any conglomeration of chemical elements in the body. The Upanishad identifies this heat, which is the living force in us, with the Ultimate Reality, called here Vaishvanara, or the Universal Fire, which consumes everything. The five pranas are the external agents of the performance of any action. They are the ambassadors, as it were, of the Ultimate Being. The food that we eat is digested by the action of the pranas. We have five pranas, and so, when taking food, religious people utter mantras saying, "This is to the prana, this is to the apana," etc. This is not merely a ritual unconsciously performed as a routine, but a religious worship. It is a meditation, and we are supposed to be conscious of what we are doing when we consume food.
---Excerpts from Sri Baba Ramdev’s preaching