As for the will, the best authorities hold that it is almost if not entirely dependent upon desire for its motive force. As desire is an outgrowth and development of feeling and emotion, it is seen that even the will depends upon feeling for its inciting motives and its direction. We shall consider this point at greater detail in the chapters devoted to the activities of the will.
We would remind you again, at this point, of the great triangle of the mind, the emotional, ideative, and volitional activities--feeling, thinking, and willing--and their constant reaction upon each other and absolute interdependence. We find that our feelings arise from previous willing and ideation, and are aroused by ideas and repressed by will; again we see that our ideas are largely dependent upon the interest supplied by our feelings, and that our judgments are influenced by the emotive side of our mental life, the will also having its part to play in the matter. We also see that the will is called into activity by the feelings, and often guided or restrained by our thoughts, the will, indeed, being considered as moved entirely by our feelings and ideas. Thus is the trinity of mental forces seen ever in mutual relation--constant action and reaction ever existing between them.
"Happiness" has been defined by an authority as "the pleasurable emotion arising from the gratification of all desires; the enjoyment of pleasure without pain." Another has said that "happiness is the state in which all desires are satisfied." But these definitions have been attacked. It is held by many that a state of the absolute _satisfaction_ of desire would not be happiness, for happiness consists largely in pleasurable anticipation and imaginings which disappear upon the realization of the desire. It is held that absolute satisfaction would be a negative state. Paley expressed a better idea when he said that "any condition may be denominated 'happy' in which the amount or aggregate of pleasure exceeds that of pain, and the degree of happiness depends upon the quantity of this excess."
Some have held that an existing contrast between pain and pleasure (the balance being in favor of the latter) is necessary to establish happiness. Be this as it may, it is admitted by all that one's happiness or unhappiness depends entirely upon one's emotional nature and the degree of the satisfaction thereof. And it is generally admitted that to be happy is the great aim and object of the life of the majority of persons,--if, indeed, not of _every_ person,--the happiness, of course, depending upon the quality and degree of the emotions forming the person's emotional nature. Thus it is seen that we are dependent upon the emotional side of our mental life in this as in nearly everything else making life worth while.