When I looked at her, she seemed to have a blue halo around her head. I myself was, so it seemed, in the Pardes Rimmonim, the garden of pomegranates, and the wedding of Tifereth with Malchuth was taking place.
Jung reports perceiving a blue halo during a near-death visionary state, directly linking the luminous aureole to Kabbalistic sacred marriage imagery and thus grounding the halo in the phenomenology of numinous experience.
, Memories, Dreams, Reflections, 1963thesis