The serenity of mind, gentleness, silence, self-restraint, and the purity of mind are called the austerity of thought.
The life of inner peace, being harmonious and without stress, is the easiest type of existence.
Peace is the result of retraining your mind to process life as it is, rather than as you think it should be.
God, grant me the serenity to accept the things I cannot change, courage to change the things I can, and wisdom to know the difference.
True silence is the rest of the mind, and is to the spirit what sleep is to the body, nourishment and refreshment.