I went up to the Light of Truth as if into a chariot:
And the Truth took me and led me: across pits and gulleys;
and from the rocks and waves it preserved me:
And it became to me a haven of Salvation:
and set me on the arms of immortal life:

Once the Light of Truth regarding our true nature, the Nature of God and our relationship to God, we have no fears, no worries, we can accomplish whatever task God gives us.  It is what gave St. Francis, Gahndi and Martin Luthor King their strength.  That is why spiritual development is so important for all of us.