Practical Hermeticism applies itself to educating thought and imagination (or memory) to keep in step with the will. This is why it requires constant effort of thought and imagination combined in order to think, meditate and contemplate in symbols – symbolism being the sole means of rendering thought and imagination capable of not being suspended when the will submits to revelation from above and enabling them to unite with it in its act of receptive obedience, so that the soul not only has a revelation of faith but also participates in this revelation with its understanding and memory.
This is the principle point of practical Hermeticism and, at the same time, its contribution to Christian mysticism. I say Christian mysticism and not Christian mystical theology, because theology rationalises the material of mystical experience in deriving rules and laws, whilst Hermeticism wants thought and imaginaiton to participate in this experience. Its aim is found in the experience itself, not in the domain of explaining it or accounting for it.
Meditations on the Tarot, Letter XII, The Hanged Man
Pictured: International Banner of Peace, Nicholas Roerich