"Creatures are not born with desires unless satisfaction for those desires exists....
If I find myself a desire
which no experience in this world can satisfy,
the most probable explanation is that I was made for another world.
If none of my earthly pleasures satisfy it,
that does not prove that the universe is a fraud.
Probably earthly pleasures were never meant to satisfy it,
but only to arouse it, to suggest the real thing....
I must keep alive in myself the desire for my true country,
which I shall not find till after death;
I must never let it get snowed under or turned aside;
I must make it the main object of life to press on to that other country and to help others to do the same."