Sindhi culture is highly influenced by Sufi doctrines and principles.
This is one of the earliest and most respected treatises of Sufism in Persian, and it debates Sufi doctrines of the past.
Her ideology draws on Sufi mystical doctrine and Jalal ad-Din Muhammad Rumi, a Persian mystic and poet from the 13th century.
Later sheikhs of the Sufi brotherhood of the Nasiriyya also played an important role as religious and cultural leaders and teachers of the Sufi doctrine (Tasawwuf).
Yazidism combines complex Kurdish cultural beliefs with Zoroastrianism and Islamic Sufi doctrine.
He also wrote a book on the Sufi doctrine of unity.
Otman Baba travelled through the eastern foothills of Stara Planina, following Sufi doctrine by surviving on leaves and wild fruit as he meditated on God.
Junayd taught in Baghdad throughout his spiritual lifetime and was an important figure in the development of central Sufi doctrine.
It is the Sufi doctrine that God is not external or separate from the universe, rather is the totality of existence.
He was a founder of Sufi doctrine, and influenced many subsequent theologians, such as al-Ghazali.