ʿAbd al-Qādir al-Jīlānī (Gilani)

ʿAbd al-Qādir al-Jīlānī was an 11th–12th-century Persian-born jurist, preacher, and Sufi in Baghdad who became the eponymous founder of the Qādiriyya, historically one of the oldest and most widely diffused Sufi orders (ṭarīqas) in the world.

Trained rigorously in Hanbali law before turning to the inner path, he was renowned in his lifetime as a powerful preacher of repentance and reform, and his teaching—preserved in works such as Futūḥ al-Ghayb (“Revelations of the Unseen”)—lays out a disciplined, graded program of spiritual development: the seeker advances through stages of repentance, self-examination, struggle against the lower self (nafs), and progressive purification of the heart toward nearness to God.

Gilani’s contribution to the lineage is organizational and methodological as much as doctrinal. By embedding heart-purification in a structured order with stages, practices, and a transmitted lineage of authorization, he helped turn individual mysticism into a transmissible system—a graded path that successive generations could be trained along.

This station-by-station model of inner development (a sequence of measurable spiritual stages) parallels the stage-maps found in Teresa of Ávila and ʿAṭṭār, and it prefigures the structured “levels” and progressive-practice frameworks that recur in later esoteric orders and in modern developmental spirituality.

He represents the move from charismatic individual realization toward reproducible spiritual technology.