Here’s a website that looks tasty:
The Society of Biblical Literature’s New Testament Mysticism Project Seminar.
As the website puts it,
The New Testament Mysticism Project Seminar (NTMPS) was organized under the auspices of the Society of Biblical Literature to facilitate the study of early Jewish and Christian mystical traditions in the New Testament writings.
The NTMPS understands early Jewish and Christian mysticism as a tradition located within formative Judaism and Christianity, a tradition centering on the belief that a person directly, immediately and before death can experience God or his manifestation.