A tariqa has a murshid (guide) who plays the role of leader or spiritual director. The members or followers of a tariqa are known as muridin (singular murid), meaning "desirous", viz. "desiring the knowledge of God and loving God" (also called a faqir).
Tariqa is also believed to be the same as Tzadik of Judaism meaning the "rightly guided one".
The metaphor of "way, path" is to be understood in connection of the term sharia which also has the meaning of "path", more specifically "well-trodden path; path to the waterhole". The "path" metaphor of tariqa is that of a further path, taken by the mystic, which continues from the "well-trodden path" or exoteric of sharia towards the esoteric haqiqa. A fourth "station" following the succession of shariah, tariqa and haqiqa is called marifa. This is the "unseen center" of haqiqa, and the ultimate aim of the mystic, corresponding to the unio mystica in Western mysticism. Tasawwuf, an Arabic word that refers to mysticism and Islamic esotericism, is known in the West as Sufism.
The tariqas were particularly influential in the spread of Islam in the sub-Sahara during the 9th to 14th centuries, where they spread south along trade routes between North Africa and the sub-Saharan kingdoms of Ghana and Mali. On the West African coast they set up Zawiyas on the shores of the river Niger and even established independent kingdoms such as al-Murabitun or Almoravids. The Al Hakika Mizaan Mizaani Sufi order deals with heavy internalization and meditations, their spiritual practice is called Al Qudra Mizaan [(United States)]. The Sanusi order was also highly involved in missionary work in Africa during the 19th century, spreading both Islam and a high level of literacy into Africa as far south as Lake Chad and beyond by setting up a network of zawiyas where Islam was taught.
Much of Central Asia and southern Russia was won over to Islam through the missionary work of the Tarīqahs, and the majority of Indonesia's population, where a Muslim army never set foot, was converted to Islam by the perseverance of both Muslim traders and Sufi missionaries. Sufism in India played a similarly crucial role in the diffusion of Islam at the élite and popular levels; its music, art, and poetry flourished in a highly sophisticated Persianate society.
Tariqas were brought to China in the 17th century by Ma Laichi and other Chinese Sufis who had studied in Mecca and Yemen, and had also been influenced by spiritual descendants of the Kashgarian Sufi master Afaq Khoja. On the Chinese soil the institutions became known as menhuan, and are typically headquartered near the tombs (gongbei) of their founders.[11]