In the friendship which I am talking about, souls are mingled and confounded in so universal a blending that they efface the seam which joins them together, so that it cannot be found. If you press me to say why I loved him, I feel that it cannot be expressed except by replying: 'Because it was him: because it was me.' Mediating this union there was, beyond all my reasoning, beyond all that I can say specifically about it, some inexplicable force of destiny.
Essay 28 ... On Affectionate Relationship