Nirukt is one of the structuring dynamics of Rk Veda. It highlights the quality of SELF-REFERRAL DIRECTION involved in structuring Rk Veda. With reference to consciousness, Nirukt comprises the specific sets of laws of Nature that are engaged in promoting the quality of Chhandas — the object of observation, which hides the dynamism of Devata in the witnessing quality of Rishi — within the Samhita level of consciousness, providing a structure to the eternally silent, self-referral, self-sufficient, fully awake state of consciousness, which is intimately personal to everyone. (complete table of qualities)

In the physiology, Nirukta is represented by the pituitary gland, the neurohypophysis, and the sympathetic and parasympathetic systems. These are activated by the limbic system and the hypothalamic releasing factors.

They expand the response and bring it back towards the organs and organ systems of the physiology through a feedback loop that maintains homeostatic balance.

		— Prof. Tony Nader-Ram in Human Physiology: Expression of Veda and the Vedic Literature, pp. 91-93