Psychology behind the life, love ?

We human beings are always curious to know the Psychological facts of life/ love or the changes of our behavior but due to the many things that comes in life and we have to deal them according to our strength or ability so that all the things distracts us from the actual path that we must know about. how do we define life or love? We don't know how to define it because we can't think like that we think just that we had been from because our thinking is limited so we can just feel it that what life or love is because these are feelings that exists in our body and defining life or love is same as summarizing river of water into the well so life and love are beautiful feelings that defines themselves and to understand them better we must need to though out from it then we could answer it.

And there is a very strong bond between Life and Love because they both can be seen, heard and touched they just felt with the internal beauty of heart so the life without love is like a fruitless tree