Love

A biologic mechanism in place to keep two people together long enough to bear and raise children, ie. procreate. The profound emotional bond that is inexplicable to most. The pain caused by being seperated from your lover has been designed by evolution to urge/pull you back to her, as has the euphoria experienced when around her. This sensation of ultimate bliss triggered when the brain releases polypeptide hormones like dopamine and oxytocin which flood the brain when around your love, (your ideal genetic match.) Her genetic compatibility is picked up subconciousley through scent. Intelligent animals like humans need such powerful forms of companionship to stay together and foster children for the lenghty time required to develop our large brains. Love is often romanticized as it should be. But really, its a purely biologic, psychological, neurological reaction to a most primal essential for the succession of a species that has taken millions of years to evolve.