"spirituality" and "the epistemology of wisdom", respectively) is a doctrine found commonly within Sufi-occult traditions that may be deduced upon the notion of "linking the superior natures with the inferior...", and broadly described as theurgy.
[1][2] This is confirmed further by al-Majrīṭī, who claims to reveal the techniques by which it is possible to convoke the rūḥāniyya of the celestial bodies.
[2] Theologian Abū Ḥāmid al-Ghazālī, the preacher and writer al-Kāshifī, and the Sufi Muḥyī al-Dīn Ibn al-'Arabī are amongst the most pre-eminent contributors.
But al-Būnī, author of the two-volume Shams al-Ma‘ārif, is as likely as not a considerable focal point for the craft.
This was to be contrasted with the more lesser conformed sorcery (siḥr), deemed forbidden in Islam.