Why Love is important in every life??

From birth to death the only thing we get i.e only Love, Love is like a air that we breath, we cant see or touch them, but we cannot live without it.it is a source of life. We get love each and every moment of life,in childhood we get love from parents, then after in young age we get love from from spouse’s and in old age we get love from our children. Apart from every instant we get love in different from like friends, Teachers, relatives,animals,girlfriend, nature.Love makes us happy in life, its shows the cause of life ,it define relationship either it is self-defined or predefined.Every relationship is important either it is predefined like(parents,brother sisters) or self defined like(girlfriend or friend ),But the base of every relationship is only love.