There is only one courage, the fundamental courage, the courage in which all other courage is rooted — and that is the courage to go beyond the known, to go beyond the familiar, to go into the uncharted. No map of the other shore exists; no definition of god exists; no proof exists that god even is. Still, the courageous one goes on seeking and searching the unknown, even the unknowable.
The coward lives in a cosy, dark hole — familiar, safe, secure, but for how long? Death comes and destroys everything. Seeing this — that death is going to destroy everything — why not inquire into the deathless? Why not risk all? When death is going to take it away anyway, why not risk all? When death is going to take it away anyway, why be so cowardly?