Yes, Aleister Crowley believed he could perform magic. He saw magic as a means to achieve personal freedom and live according to one's desires, and he attempted to blend the methodology of science with the aims of religion in his magical practice.
Elaboration:
Crowley's belief in magic stemmed from his interest in mysticism and the occult, which he explored after rebelling against his evangelical Christian upbringing.
He saw magic as a tool to achieve spiritual and physical experiences, and he believed that these experiences could be documented and tested, similar to scientific experiments, according to Wikipedia.
One example of his magical work involved a ritual performed with a companion where they both believed they were experiencing a supernatural encounter.
Crowley was a practitioner of darker magic, and his belief system was based on the idea that people have the power to be free and live according to their own desires.
He saw the practice of magic as a way to explore and experience the world, which he believed was not limited to physical reality, according to The British Library.
Liber AL vel Legis (Classical Latin: [ˈlɪbɛr aː.ɛɫ wɛl‿ˈleːgɪs]), commonly known as The Book of the Law, is the central sacred text of Thelema. The book is often referred to simply as Liber AL, Liber Legis or just AL, though technically the latter two refer only to the manuscript.
--------
Aleister Crowley said that the book was dictated to him by a beyond-human being, Aiwass, who he later referred to as his own Holy Guardian Angel.
Joe_McCarthy 1 points 3 weeks ago
Liber AL vel Legis (Classical Latin: [ˈlɪbɛr aː.ɛɫ wɛl‿ˈleːgɪs]), commonly known as The Book of the Law, is the central sacred text of Thelema. The book is often referred to simply as Liber AL, Liber Legis or just AL, though technically the latter two refer only to the manuscript.
--------
Aleister Crowley said that the book was dictated to him by a beyond-human being, Aiwass, who he later referred to as his own Holy Guardian Angel.
https://en.wikipedia.org/wiki/The_Book_of_the_Law