Vyakaran is one of the structuring dynamics of Rk Veda. It highlights the quality of EXPANSION involved in structuring Rk Veda. With reference to consciousness, Vyakaran 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, Vyakarana is represented by the hypothalamus. The hypothalamus releases factors that activate the pituitary gland, neurohypophysis, and autonomic nervous system.

These releasing factors represent the expansion fundamental to the process of evolution of the endocrine and autonomic response, which leads to a large number of biochemical and physiological responses that bring the system to a new state of balance.

		— Prof. Tony Nader-Ram in Human Physiology: Expression of Veda and the Vedic Literature, pp. 85-90