Samatva is a word for equanimity used in Yogic Sciences for state of chitta. Chitta is mind – intellect complex. Aim of Yogic study is to stabilize our body and mind with the help of intellect to experience this state.
Constant deviations of mind are due to various sensory inputs. These inputs travel their pathways to reach their respective centers in brain. Brain interprets, processes, analyzes, stores them and orders action.
Homeostasis is a physiological term meaning a state of dynamic equilibrium of internal environment with the help of feedback & regulations.
The internal environment of a cell is extracellular fluid around it. This fluid contains optimum amount of O2 Glucose, fatty acids and amino acids for nutrition of cell and k+, mg++, PO4—for cellular integrity.
Aim of cells forming tissue, tissues forming organs, organs forming systems is to maintain Homeostasis. e.g. Lungs bring O2 to blood and maintain acid – base balance, heart delivers sufficient blood as per need to each and every cell of body, kidney excretes the waste products and maintains water and electrolyte balance, brain constantly watches the surroundings, to detect danger & protects body from it.
Samatva state of chitta teaches us to optimize the challenges in our life and teaches body and mind to face them efficiently. This helps body to maintain Homeostasis. Thus samatva state of chitta helps physiology of body not changing into pathology.
Science of Yoga teaches us to use our intelligence in the form of awareness and conscious efforts, to watch the state of mind, emotions, thoughts and our actions.
Ashtang Yoga disciplines our behavior by Yama & Niyam which filter the sensory inputs. Asan, Pranayam maintain our body structurally & functionally with optimum energy utilization.
Pratyahar, Dharana and Dhyana discipline our sensory inputs and their pathways. They correct our perceptions to reach a state of equanimity, i.e. Samatva.
It is a long way but a sure way for health & happiness.