I'm looking for music which I can relax with a cup of warm tea, imagining myself exploring divine realms.

Here is one example.
https://www.youtube.com/watch?v=tH1P51moY8M
It is VGM, BUT it is relevant as an example. Music from any source is alright but I want to include non-VGM as well.

I would recommend Best of Silk Road by Kitaro, or Like a light, like a wave by Norhiro Tsuru. While it is a little different I also like the soundtracks to Mushishi.

Hope that helps :)

I first heard about Kitaro back in 2003 when this guy did some sand art presentation to the Ancient album. I ended up buying the album and a couple others.

https://www.youtube.com/watch?v=e6_GV2hpue0

OP, you might try Engima's MCMXC a.D. as well as Cross of Change (and the other albums if those 2 work for you). I like the technical achievements of his subsequent albums, but I always come back to MCMXC, it just nails simplicity.
In fact here are lyrics of the first track of that album, should give you an idea.


Good evening
This is the voice of Enigma

In the next hour
we will take you with us
into another world,
into the world of music, spirit and meditation

Turn off the light,
take a deep breath
and relax

start to move slowly,
very slowly
Let the rhythm be your
guiding light


You might also try Deep Forest's first album (called Deep Forest). It's a little harder to find, and even harder to listen to, but if you can get passed the unusual language, the music and flow of the album is very good.