What is love? Do you really understand love?

What you feel when you are in love?
Alkesh Sharma
HAS INTERNATIONAL INC GE...

"My IN friends,lets share feelings of love.I am sure a lots of members felt this feelings in there passed life...how you expressed your first love..how you felt when some one proposed you.what changes you got in life after in love ...did you got your love ?? what was the end of your love story.sweet or sour ??"

Above thread has been posted by my learned friend Alkesh. But it created many questions in my mind. Do we really know what love is? Have we really understood the very meaning of it? We are talking much about humanity and love, now let us really make an attempt to prove that we really know what it is! Or Do we?