I was considering some "adventure travel" holiday but found most of the described trips seemed like just running without much purpose.....a geographical-only movement. I was intrigued by the idea of an experience of inward travel or a trip within myself, a kind of Greek philosophic "know thyself" adventure. A Mystery School sounded like a legitimate, organized, objective goal result school rather than another fuzzy thinking, self-help, touchy feely class for and led by people who though well-intentioned, are wanting in proper talents, skills and motivations .
I would describe the Mystery School experience as the most significant activity or event of my life; an ever escalating exhilaration, a peek at Reality and the true meaning of who we are and the purpose of life, a realization and experience of theosophy and of the way things should and could be.
Although the high diminishes there is always the remembrance of the knowing of what can be and the ultimate spiritual potential of who we are and can always be again. This provides a anchor for all vicissitudes, a knowledge that will not leave you.
The Mystery School experience gave me an inward place where I remember the TRUTH about life and its meaning; where I can always go when I am feeling troubled, confused, shortsighted, small and helpless. It is a perfect match to theosophical studies and helps fulfill the third leg of the three legged stool of study, meditation (experience) and service to others, with Mystery School giving one the product of meditation on an accelerated basis.
Do it. It is the most important thing you can do in your life, for yourself and to find yourself. It will bring you untold rewards beyond anything you might imagine.