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And now we stand before the abyss. It is void of all the dreams with which our fathers peopled it. They thought that they knew what was there; we know only what is not there. It is the vaster by all that we have learned to know nothing of. While waiting for a scientific certainty to break through its darkness—for man has the right to hope for that which he does not yet conceive—the only point that interests us, because it is situated in the little circle which our actual intelligence traces in the thickest blackness of the night, is to know whether the unknown for which we are bound will be dreadful or not.
Outside the religions, there are four imaginable solutions and no more: total annihilation; survival with our consciousness of to-day; survival without any sort of consciousness; lastly, survival in the universal consciousness, or with a consciousness different from that which we possess in this world.