The astral realm is not a place to visit of your own free will. It is a place of demands, of false gods, and of force of wills. My experience there has been awful. In many ways, I see myself above those who have been there for so long. My will was strong and forceful when I was angry. There has not been any fear while I've been there, not from me anyhow.
To explain, your force pushes more when you're angry. The celestial spirits try to stay calm, so their level of power is generally the same; a force that normal people from over a century ago could not fathom to defeat. However, when fear sets in it seems as though the defenses go higher, while not being able to push back. In a way, emotion is key when fighting within the astral realm. It doesn't hurt to know that, when you astral project to the plane, you are as you see yourself, which can alter your outwards appearance while there.
For the most part, the astral plane during combat is what you make of yourself, and how much you are willing to change to win, to claim what is right. Although, this brings in the question of how human you are when you are there. For example, I was forced into combat with somebody that quickly turned into a beast, and was trying to use their horns to defeat me. Because of the reasons why I was fighting them, I was in a fit of rage, so I merely shifted my position and broke their very being.
This was... is something that will be reported on later. Other than that, the combat, I have experienced other things that the astral has to offer. This is all for now.