Why such a close affiliation with the sun?

[Cyan]

Then should we get some kind of protection to experience the sun?

I recommend a good scifi movie about entering the sun. Some TNG episodes are good for watching. Then i recommend any scifi documentaries about the sun interior.

Then you put them into a movie editor and make a few hour long video of various "diving into or in a sun" and put nice warm music on (lots of low murmur sounds but gently, kind of womb like), then you raise the room temp to just below your body temp (so hot but not uncomfortably so,) and add some fumes to the air (steam in a sauna would be optimal but others can do as well) then slow your breathing and your heartbeat to about 40-50 bpm or very low sleep but sitting. And have a meditation in that state and you'll get pretty darn close. =)

Edit: If you want to experience a astral state that is beyond your normal imagined limitations take all the possible steps that you could take, at your maximum, to put your body in a state as close to as possible to its maximum closeness to the concept you wish to experience and assume that your next density self has taken similar steps in their world and will guide you from that step onward on the journey and you'll get there quite nicely without any troubles, in my expeirence.