The great lights of the worlds spiritual traditions who have graduated from earths schoolroom are known as ascended masters. They demonstrate that in the world of Spirit, there is no division of race, religion or philosophy. What is not widely known about these great masters is that they have retreats, temples and cities of light in the heaven-world that can be visited during spiritual meditation and while our bodies sleep at night. This magnificent work speaks about the masters, their lives and their incredible retreats. Black-and-white illustrations.