Love - compound (composite) < lodge >, hard for definition become phenomenon, with affection (sentiment; emotion) often identify, which (who) manifest in rate for second (other) person ( or object ), it become with strong thirst with (from) jointed communing her (it), maybe accompany that be for person physical train object of affection (sentiment; emotion). Usually < ordinary > it is display by action for beloved person good < goods (right) >. Love causes pain often and suffering so called " love unreciprocated ". Love is object of fascination and for framers of arts source of inspiration, literatures, psychology and religion. It takes place by some people considered meaning of human life genuine  making it (them) and completely happy.