Patience is necessary in this life because so much of life is fraught with adversity. No matter how hard we try, our lives will never be without strife and grief. Thus, we should not strive for a peace that is without temptation, or for a life that never feels adversity. Peace is not found by escaping temptations, but by being tried by them. We will have discovered peace when we have been tried and come through the trial of temptation.
Let not therefore thy heart be troubled, neither let it fear. Trust in me, and put thy confidence in my mercy. When thou thinkest thyself farthest off from me, oftentimes I am nearest unto thee. When thou countest almost all to be lost, then oftentimes the greatest gain of reward is close at hand. All is not lost, when any thing falleth out contrary. Thou oughtest not to judge according to present feeling; nor so to take any grief, or give thyself over to it.
Count not thyself to have found true peace, if thou hast felt no grief; nor that then all is well if thou hast no adversary; nor that this is perfect, if all things fall out according to thy desire.