Before providing a description, a brief clarification is important: Imam Abu Hamid al-Ghazali (d. 1111 CE) was a giant of Islamic jurisprudence, theology, and Sufism, best known for Ihya' Ulum al-Din . He generally warned against reliance on numerology, talismans, and "spiritual experiments" outside the bounds of Sharia.
It sounds like you are looking for information about the (The Spiritual Practices & Experiments of Imam al-Ghazali), often circulated as a PDF. mujarrabat ghazali pdf
Would you like direct links to authentic works of Imam al-Ghazali instead? Before providing a description, a brief clarification is