What is love? Is love at first site real?

this has been here before. attraction is the vdery beginning and then the big 'click'! those two people just seem to click! they just seem to fit! and its not necessarily just for to begin with cos first you gotta be looking at each others faces dont you? eyes, smile, speech, body language are the first things noticed. if two people look at each other and feel instantly attracted then it stands to reason that they could love each other on sight too. and the conversation shared can meld that feeling. some people jsut seem to know.... i believe in it. and i have seen relationships like this last for decades. its real and those people are very lucky to have found each other.