Courage

Courage and love are the only indispensable virtues; even if all the others are eclipsed or fall asleep, these two will save the soul alive.
There is no greater courage than that of recognising one’s own mistakes.
Courage is a sign of the soul’s nobility. But courage must be calm and master of itself, generous and benevolent.
In true courage there is no impatience and no rashness.

Hostile Forces

Attacks from adverse forces are inevitable: you have to take them as tests on your way and go courageously through the ordeal. The struggle may be hard, but when you come out of it, you have gained something, you have advanced a step. There is even a necessity for the existence of the hostile forces. They make your determination stronger, your aspiration clearer.

It is true, however, that they exist because you gave them reason to exist. So long as there is something in you which answers to them, their intervention is perfectly legitimate. If nothing in you responded, if they had no hold upon any part of your nature, they would retire and leave you. In any case, they need not stop or hamper your spiritual progress.