His constant fight is with the Nafs (self-interest), the root of all disharmony and the only enemy of man. By crushing this enemy man gains mastery over himself; this wins for him mastery over the whole universe, because the wall standing between the self and the Almighty has been broken down. Gentleness, mildness, respect, humility, modesty, self-denial, conscientiousness, tolerance and forgiveness are considered by the Sufi as the attributes which produce harmony within one's own soul as well as within that of another.

In love abides all knowledge. It is mankind's love and interest in things that in time reveals their secret.

Now if I do anything it is to tune souls instead of instruments. To harmonize people instead of notes. If there is anything in my philosophy, it is the law of harmony: that one must put oneself in harmony with oneself and with others.

With love, even the rocks will open.

Each individual composes the music of his own life. If he injures another, he brings disharmony. When his sphere is disturbed, he is disturbed himself, and there is a discord in the melody of his life. If he can quicken the feeling of another to joy or to gratitude, by that much he adds to his own life; he becomes himself by that much more alive. Whether conscious of it or not, his thought is affected for the better by the joy or gratitude of another, and his power and vitality increase thereby, and the music of his life grows more in harmony.

Life is a place where it is necessary to move gently. Whether it be in thought, speech, or action, the rhythm must be controlled; the law of harmony must be observed in all that one does. If there is anything that will bring satisfaction it is diving deep into Love, and then we shall realize that there is nothing which is not just; we shall never again say that anything is unjust. This is the point the wise reach, and they call it the culmination of wisdom.

For a musician, music is the best way to unite with God.