We live together, we act on, and react to, one another; but always and in all circumstance we are by ourselves. The martyrs go hand in hand into the arena; they are crucified alone. Embraced, the lovers desperately try to fuse their insulated ecstasies into a single self-transcendence; in vain. By its very nature every embodied spirit is doomed to suffer and enjoy in solitude.
— Aldous Huxley, The Doors of Perception (1954)