So, I will add here some things that I know personally. In 1979 I had an experience that changed my world. I was on a beach just walking near a well lit road. My experience was of diagrams in the sand (10 in all) and a voice explaining each diagram. I wasn't out of it mentally, but actually very curious about it all. The next morning there was nothing on the beach; all gone!!
This, and later "views" in 1990 and 1992 came about quite naturally, though these experiences taxed my body as well as my mind. You see, I was diagnosed as schizophrenic in 1983, but I did not KNOW what that meant before 1990.
Now, I have done a lot of reading for 21 years since 1997. I have learned about crossover experiences where dimensions combine to produce a specific effect; and I have become an advocate of mind/matter situations. The normal world would say that I was strictly hallucinating, with voices. Agreed, to a point, and I mean to a specific point of translation of those events. In 1990, as I was walking along a road at night, I was speaking positive mantras and noticed how the atmosphere was growing hazy, as if my words were having an effect? In 1992, strange coincidences, like having one of those folding matchbooks that I have never seen before or after. I spent a half-hour dreaming and seeing a heroic story unfold by meditating on that matchbook. There were other "firsts" in 1992, like seeing a poster on my wall that had concentric circles with flora and a garden at the center with a human figure at center. I was looking at eons of time within each circle.
These were all possible dimensional travels. Yet, I can only say that these events happened in my life. Today I'm on medication, so everything is quiet now.
I have gorged all Zechariah Sitchin books, but I can only guess that he is not so popular by some folks. I have two of your books, Gateway to Atlantis and The Cygnus Mystery. Unfortunately, my library is too large for me to read everything. Reading takes time within my full time job. I pick and choose which book I will read next.
Which of your two books would you recommend for July?