These terrestrial retreats, and study/experience/exploring of sacred spaces are hugely valuable in our present time, as I perceive it. Why? The way I perceive the embodiment of our spiritual nature and abilities within our physical form, is that connecting with Earth energies is essential, not only for grounding, so that what's below mirrors what's above, but also for the benefit of balance-seeking, peace-making, between our ancestors with their wisdom, and ourselves in a world abundant with digital technology, causing limitations in our spiritual and creative abilities, due to an almost replica of the former, but in an artificial wrapping of some sort. An artificial reality that isn't reached by walking a path with heart.

I believe that this series of talks, 18 video in total, might be valuable for this openhandweb, to enrich its understanding of the world we live in today:

Dr. Steven Greer on the Crossing Point (#1 The beginning) - YouTube

Current knowledge of science meets the science of consciousness in contact experiences.