The human individual meets the objects, forces and stimuli of the outer world with any one of three possible lines of reaction, namely, attraction or acceptance, with the responses of happiness, joy, pleasure, and other positive forms of response; repulsion or rejection, with the responses of dissatisfaction, sorrow, grief, hatred, and other negative forms of response; and indifference with neither a positive nor a negative form of response. None of these are fixed attitudes, so that based on changing circumstances as well as mental, emotional or vital attitude of the moment, something that causes joy in one instance may provoke sorrow or indifference in another. Each of these represents the ability, or lack thereof, of the individual constitution to meet and address the forces impinging upon it.
Sri Aurobindo observes: “The principle of endurance relies on the strength of the spirit within us to bear all the contacts, impacts, suggestions of this phenomenal Nature that besieges us on every side without being overborne by them and compelled to bear their emotional, sensational, dynamic, intellectual reactions. The outer mind in the lower nature has not this strength. Its strength is that of a limited force of consciousness which has to do the best it can with all that comes in upon it or besieges it from the greater whirl of consciousness and energy which environs it on this plane of existence. That it can maintain itself at all and affirm its individual being in the universe, is due indeed to the strength of the spirit within it, but it cannot bring forward the whole of that strength or the infinity of that force to meet the attacks of life; if it could, it would be at once the equal and master of its world. In fact, it has to manage as it can. It meets certain impacts and is able to assimilate, equate or master them partially or completely, for a time or wholly, and then it has in that degree the emotional and sensational reactions of joy, pleasure, satisfaction, liking, love, etc., or the intellectual and mental reactions of acceptance, approval, understanding, knowledge, preference, and on these its will seizes with attraction, desire, the attempt to prolong, to repeat, to create, to possess, to make them the pleasurable habit of life. Other impacts it meets, but finds them too strong for it or too dissimilar and discordant or too weak to give it satisfaction; these are things which it cannot bear or cannot equate with itself or cannot assimilate, and it is obliged to ive to them reactions of grief, pain, discomfort, dissatisfaction, disliking, disapproval, rejection, inability to understand or know, refusal of admission. Against them it seeks to protect itself, to escape from them, to avoid or minimise their recurrence; it has with regard to them movements of fear, anger, shrinking, horror, aversion, disgust, shame, would gladly be delivered from them, but it cannot get away from them, for it is bound to and even invites their causes and therefore the results; for these impacts are part of life, tangled up with the things we desire, and the inability to deal with them is part of the imperfection of our nature.”
Sri Aurobindo, The Synthesis of Yoga, Part Four: The Yoga of Self-Perfection, Chapter 12, The Way of Equality, pp. 681-683