Sufism is a part of Islam which counts on the ideas of mysticism. Sufism was developed in the Middle Ages. In general, this period is characterized by dogmatism in religion and stagnation in many other fields of human life. Sufism proves that this time also gave birth to new and outstanding approaches, which presented unique and outstanding view on the world and religion. The origins of Sufism are still the object of disputes, but most of the scholars and researchers agree that Sufism is the inner part of Islam. Some adherents of Sufism state that Sufism is a unique collection of practices which were passed by Mohamed directly to the selected group of people who had an ability to perceive this knowledge. In contrast to conventional Islam, the followers of Sufism believe that there is a way to reach God and experience divine presence during the human life. Sufis try to feel the Devine presence and feel the presence of God in the world around them. They want to overcome the duality of physical reality. Sufism has many practices which help people to reach this state of non-dualism. Sufism present unique and liberated vision of God. Sufism is famous for good knowledge of the structure of human psychics and instruments to deal with it. Sufi possessed the knowledge of the lower levels of self (ego) and directed their practice to purify this lower self in order to become ready to meet the Divine presence. Sufism presents a unique and deep religious vision which does not have dogmatic vision of the world. It is hard to believe that such a unique religious and mystical tradition appeared in the Middle Ages. Sufism adds new dimensions to Islam. It shows that this religion has different approaches and can appeal to different people. Sufism adds dynamic aspects to Islam and challenges the vision of the Middle Ages as a dogmatic and stagnated period of human history.