The mystical fourth dimension, as named by P. D. Ouspensky, is a personal passion of mine. Yet, I by no means consider myself a mystic... a struggling Ph.D. student in philosophy at best! William Irwin Thompson, who truly was a mystic, writes in his beautiful and insightful way...

"Mystics are people who attend to the graininess, who look at the gaps between the sequences of "nows," who intuit around the three-dimensional constructs of their fellows the angels of multidimensionality who are everywhere about them."

William Irwin Thompson, Coming Into Being: Artifacts and Texts in the Evolution of Consciousness