One said: "Authentic yichud love must express a sensitive balance between reason and romance, discipline and spontaneity, dream and realism, aggressiveness and withdrawal, fusion and independence. It must be sustaining throughout life, able to weather the daily prosaic crises that come not only between the lovers, but also between them, the family, and the community. It is not selfish, but it is also not impersonal. It is not shut off from society, but it is also not solely communal. It is not exclusively spiritual, and it is also not exclusively social. It is not wholly an idealistic love, and it certainly is not an exclusively sensual love."