Summary of the concepts of Ahl al-Sunnah Sufism and the Sufis The Sufism attributed to the Sufis is a doctrine that states that knowledge of Allah Almighty is attained through tasting and ecstasy not through rational inference. Most of them lean towards the Hindu doctrine of self-torment to become qualified for union with the deity, which they call annihilation (fana'). Some Muslims have inclined towards Sufism after the fourth century Hijri. They introduced dancing and listening to music into the religion. They have innovative, deviant terminology and innovations, some of which lead their adherents out of the fold of Islam, and others less so. The emergence of Sufism in its early stages was due to historical reasons, including the weakness or deviation of the central Caliphate and people's indulgence in luxury and pleasures, their forgetting of the Hereafter and distancing themselves from its path. The reaction to that was to oppose and reject the worldly life. This was followed by influence from Indian or Christian monasticism. Among what the Sufis call is the influence of the Jabriyyah (determinists) doctrine and abandoning the taking of means. Their deviant terms are numerous and varied. We will present the most important of them in the following concepts.