Substratum Quotes
An eternal purgatory, then, rather than a heaven of glory; an eternal ascent. If there is an end to all suffering, however pure and spiritualized we may suppose it to be, if there is an end to all desire, what is it that makes the blessed in paradise go on living? If in paradise they do not suffer for want of God, how shall they love Him? And if there, in the heaven of glory, while they behold God little by little and closer and closer, yet without ever wholly attaining Him, there does not always remain something more for them to know and desire, if there does not always remain a substratum of doubt, how shall they not fall asleep?
Miguel de Unamuno