Sufism in Islam

Sufism is a sport and a philosophy... a sport for the soul, weaning it from desires, and taking for it the means of asceticism, until it devotes itself to what is higher than dust, and a philosophy that is not like the philosophy that people know, for it is not based on the rules of logic, nor on the causes of knowledge, but it is based on the gift Godliness, and worldly knowledge, is attained by ...