I listened to
Kryon, he briefly talked about this subject, you might enjoy it, unfortunately, I don't remember which one exactly, but it's one of the newer channelings(2012 section)
In regards to your question.."Anyway , has anyone communicated to someone they knew who now lives on another planet, star system ... or has described a wholly different dimensional reality "where" they now live."
This may get me flamed, but whatever.....I have met and
very briefly communicated, and on another occasions, as a child met but didn't communicate as I was a kid and late for school.
Although the second time I did wave hello, but my classmates screaming bloody murder, and panicking probably dissuaded any further contact/communication. :shrugs: It happens.