‘Seventh Ray’ is a Mixed Reality (MR) platform inspired by Mystery School initiation techniques of the ancient world. The platform employs the latest in perceptual and sensory augmentation technologies to explore the meaning and modern day significance of these ancient ceremonies. The historic texts provide a formula and the new technologies provide the tools to revive these rites into previously unimaginable formulations. The Seventh Ray seeks to explore the combined power of drama with the particular state of awareness one feels when they fully inhabit a mixed reality. Might the MR brain exhibit closer parallels with the ‘book reading brain’ than that of the ‘movie watching’ one? The ancient texts give us a formula; the emerging technologies of VR and AR give us the tools to revive these ancient rites into unimaginable dimensions.