FAITH
Take the first step in faith. You don't have to see the whole staircase, just take the first step.
Faith and doubt cannot exist in the same mind at the same time, for one will dispel the other.
Faith is to believe what you do not see the reward of this faith is to see what you believe.
If fear is cultivated it will become stronger, if faith is cultivated it will achieve mastery.
fear, cultivated, become stronger