I must not fear,
Fear is the mind killer,
Fear is the little death that brings total obliteration,
I will face my fear,
I will permit it to pass over me and through me and when it has gone past I will turn the inner eye to see it’s path,
Where the fear has gone there will be nothing,
Only I will remain.

— Frank Herbert, Dune, Book One, Ch. 1, 1965, Chilton Books