I do not mean to say that you will become happy in such a situation. You will not. But fear and pain will become transmuted into an inner peace and serenity that come from a very deep place—from the Unmanifested itself. It is "the peace of God, which passes all understanding." Compared to that, happiness is quite a shallow thing. With this radiant peace comes the realization—not on the level of mind but within the depth of your Being—that you are indestructible, immortal. This is not a belief. It is absolute certainty that needs no external evidence or proof from some secondary source.

Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment