Rhythm is Life Disguised in Motion

Sufis, in order to awaken in man that emotional nature which is generally asleep, have a rhythmic practice which sets the whole mechanism of body and mind in rhythm.
All labour and toil, however hard and difficult, is made easy by the power of rhythm in some way or other. This idea opens to the thinker a still deeper scope for the study of life. Rhythm in every guise, be it called game, play, amusement, poetry, music or dance, is the very nature of man’s whole constitution. When the entire mechanism of his body is working in a rhythm, the beat of the pulse, of the heart, of the head, the circulation of the blood, hunger and thirst - all show rhythm, and it is the breaking of rhythm that is called disease.
Rhythm plays a most important part not only in the body, but in the mind also. The change from joy to sorrow, the rise and fall of thoughts, and the whole working of the mind show rhythm, and all confusion and despair seem to be accounted for by the lack of rhythm in mind.
In ancient times healers in the East, and especially those in India, when healing a patient of any complaint of a psychological character known either as an obsession or an effect of magic, excited the emotional nature of the patient by the emphatic rhythm of their drum and song, at the same time making the patient swing his head up and down in time to the music.
A keen observation shows that the whole universe is a single mechanism working by the law of rhythm; the rise and fall of the waves, the ebb and flow of the tide, the waxing and waning of the moon, the sunrise and the sunset, the change of the seasons, the moving of the earth and of the planets - the whole cosmic system and the constitution of the entire universe are working under the law of rhythm.
Source: Hazrat Inayat Khan