Carl McColman has both studied and practised the Christian mystical tradition, stressing its earthiness and 'ordinariness'. He holds that mysticism is not an esoteric realm, reserved for the very holy, but is what all Christian life is about. I strongly commend The Big Book of Christian Mysticism.
The Big Book of Christian Mysticism is a masterpiece of scholarship and wisdom. Carl McColman obviously earned his understanding of mysticism through years of research as well as his own personal spiritual journey and there is no more powerful combination for inspired writing.