 Kant’s account of hope for happiness presents hope as very closely connected to Kant’s concept of faith. This becomes obvious in the Critique of Practical Reason. Kant argues that in order to believe in the possibility of the highest good—and we have to believe in this possibility, as it is prescribed by the categorical imperative—we have to believe in or postulate the existence of God and the immortality of the soul. Kant himself uses both the concept of belief or faith and the concept of hope in explaining the content of the postulate of immortality: we must presuppose immortality in order to conceive of the highest good as “practically possible” and we may therefore “hope for a further uninterrupted continuance of this [moral] progress, however long his existence may last, even beyond this life” (AE 5:123). Thus, Kant can be understood as arguing in favor of a traditional religious form of hope—hope for a life after death or immortality of the soul. However, he points out that immortality is not a ‘mere’ hope (i.e., a hope for an outcome where we lack evidence for the claim that it is really possible), but that reason makes it necessary (as a consequence of the categorical imperative) to assume that immortality is possible.