Perennialists regarding the phenomenology of mysticism, like Walter Stace, feel that all Christian mystical experiences are fundamentally similar to each other and to experiences described by mystics across religious traditions, cultures and ages. In his seminal work, Mystic Union: An Essay in the Phenomenology of Mysticism, Nelson Pike convincingly argues that this extreme position is inadequate for capturing the breadth of experiences described by the canonical Medieval Christian mystics. However, Pike may have leaned too far away from perennialism in claiming (...) that all the experiences of (Christian) mystic union are essentially theistic. Here, I argue that Pike did not successfully establish this point and that union without distinction, often described as the pinnacle of union by Christian mystics, remains a viable candidate for an instance of a trans-traditionally type-identical mystical experience. (shrink)