Reddit mentions of Spiritual Body and Celestial Earth

A couple of books on the more scholarly side; Sufism and Taoism and Mystical Dimensions of Islam are good, if somewhat deep and dense, and useful, orienting. The works of Henry Corbin, such as Spiritual Body and Celestial Earth and Alone With the Alone: Creative Imagination in the Sufism of Ibn Arabi, are illuminating. Look into the Sufi mystics themselves as much as commentary, there should be a list somewhere online but Ibn Arabi, Suhrawardi, Jabir Ibn Hayan ('Geber'),Avicenna and Hallaj as well as the more well known Rumi come to mind. Your best bet if you really want to learn about Sufism is to take up instruction under a Shaykh in an order. Depending on where you are there is possibly a local order you could attend meditations and classes with?