We return now to that which we proposed at the beginning as a primary question, not for those who are already certain by Catholic faith, but for inquirers into the mystery of human destiny beyond the veil. Is there a heaven, and what is the way by which it can be attained? Modern rationalism presents at best nothing higher that the eternal state into which human nature fell by the transgression of Adam, and from which we are redeemed by Christ. This species of philosophical and semi-Christian Theism, which is respectable in pagans and those who are in a similar condition of dim enlightenment, has no intellectual foundation which can stand or give support, in opposition to the clear Christian revelation. The firm assent to its really sound and rational principles and their logical conclusions, inexorably demands a further assent, to the physical, moral, and metaphysical demonstration by which the certain truth of Christianity is made evident to reason. A consistent and thorough rejection of Christianity reacts with irresistible logical violence against the first premises of natural theology. The prevailing rationalism is materialistic and atheistic. The contrary of Catholic faith, the real error of the age, the logical alternative of genuine undiluted Christianity, is anti-spiritual, anti-theistic Nihilism. To those who have a repugnance for the hell which is the shadow of heaven in Catholic doctrine, the night-side of the supernatural, this system cannot be very attractive; unless they are in despair, and already so unhappy and hopeless that existence seems to them an intolerable evil. In this system there is nothing besides hell. Hell is the necessary, eternal reality, the only being. The negation of all eternal good, of all beatitude whether natural or supernatural, is the one, fundamental dogma of Pessimism.