Love is the most subtle and complex emotion. It can be experienced at peak intensity only with the full power of the human intellect and in the calm of a fearless and lucid mind. The direction of evolution is toward love. --Philip Linden, founder of Second Life and of Lovemachine: http://www.lovemachineinc.com/tao-of-lovemachine/
Philip is talking about the impetus behind his new company, Lovemachine, a sort of cross between a Twitterish feed and a merit/kudos employee reward system. In effect it acts like in-house LinkedIn recomendations. A nice idea. But what he says here has a great deal of merit.
Love is complex, and uncontrollable. I'm not talking about lust here--that is the unpredictable response to biological stimuli, I am talking about the internal feel good you get from loving someone. Love doesn't have to be requited to be real. You can love someone even when they don't love you. Then again, when someone loves you, really loves you and demonstrates that love, over and over, it is difficult not to love back.
Love does not take place in the groin, that's lust. And lust is a fine thing, too. You got mutual lust going with someone, go ahead, have a great time. Love, however, is that feeling that you can't live without knowing that the other is happy. Their well-being takes precedent over your own. Lust is about you. Love is about him, or her.
Just as Philip says, love needs a lucid mind. Love is when you see the other clearly--all their flaws, all their faults, and you still love. Love happens in the heart, and in the head. The very best sex ever is not love unless your head and heart, your mind and soul are engaged. And to be honest--the best sex involves the head as well as the heart. The imagination as well as the body. When both the heartt and head are involved it is so much more than just sex. It is that perfect connection between two people that transcends everything. If you find it, cherish it. It is priceless. If you lose it, you will know it was love by the unfillable hole left behind.