For warmth, for protection, for procreation, for society, the group comes together.
In its membership, perhaps, each is greater than himself. There also seems to be an unspeakable something that the group asserts ... something, but what?
Perhaps it is just that each is less lonely, although there can seem to be something more as well.
Less lonely and yet, in a strange simultaneity, a recognition of and emphasizing of how alone anyone actually is.
A koan of sorts.
Less lonely ... more alone ... and yet something.