If you remember nothing else, remember this: Inspiration from outside one's self is like the heat in an oven. It makes passable Bath buns. But inspiration from within is like a volcano: It changes the face of the world.
The Islam that we know is a faith devoted to the worship of one God, as revealed through The Holy Qu'ran. It teaches the value and importance of charity, mercy, and peace.
To engage in any activity, the warrior needs to know what to expect, how to achieve the objective and whether or not he is capable of carrying out the proposed task.
If faith in ourselves had been more extensively taught and practiced, I am sure a very large portion of the evils and miseries that we have would have vanished.