And when one of them meets with his other half, the actual half of himself,whether he be a lover of youth or lover of another sort, the pair are lost in an amazement of love and friendship and intimacy and will not be out of the other's sight , as I may say even for a moment,these are the people who pass their whole lives together, yet they could not explain what they desire of one another,for the intense yearning which each of them has towards the other does not appear to be the desire of lovers intercourse but of something else which the soul of either evidently desires and cannot tell.

-Platos Symposium