The most fundamental exercise is self-observation, which is the catalyst for inner change, it will give self-knowledge and a clear mind and perception. Without it, the attempt to reach enlightenment and awaken consciousness is destined to fail.
To understand the extreme lengths to which the Sufis were prepared to go in reading esoteric meanings into the quite simple language of their Scriptures, it is necessary to remember that the Koran was committed to memory by all deeply religious men and women, and recited constantly, aloud or in the heart; so that the mystic was in a state of uninterrupted meditation upon the Holy Book. Many passages which would otherwise pass without special notice were therefore bound to arrest their attention, already sufficiently alert, and to quicken their imagination, already fired by the discipline of their austerities and the rigor of their internal life.
Poets must be grounded in the education of the arts, drama, history, mysticism, esotericism, and philosophy. To gain knowledge and become learned of the above is easy - read. Poets should apply this knowledge to their work, so a poet will advance to the next level, to their next phase of their emotional, psychological and spiritual development, growing in years in a short space of time, in hours or months if he or she is an avid reader. This knowledge will birth work that is not meretricious but of noble parentage.