The word Sufism is originally derived from the word Sufi, and the word Sufi is derived from the Arabic word Suf. The Arabs call this fabric pure. In the early days, people who followed the path of Sufism were accustomed to wearing a chakman (also called a hirqa) or a skin sewn from it to distinguish themselves from other ordinary people. That is why they are called Sufis. A Sufi is distinguished from other people by his pure and Western way of life, his constant obedience, and his goal of joining the divine spirit. For a Sufi, there should be no taste of this world or the hereafter. The only desire is to reach the presence of Allah. A person with a sense of poverty is neither a slave nor a pilgrim, he is a slave to Allah alone, he needs Allah alone. This is the meaning of Sufism, the renunciation of everything and, ultimately, the renunciation of self. The great Sufi Boyazid Bistomi says: They say to themselves: We have nothing, but we do not worry about running after them. Remember, the grave is behind us, and there is no need to mourn if we die.