An astral form is the state a being takes when it sheds its earthly tether and transcends into a higher existence. This grants them full access to their powers. When in astral form, they cannot be touched or harmed by any being that is not also in astral form. It has been over a millennium since I took on my astral form, and frankly, in my current human state, I don't know what it would be like.
Leto, in his astral form, was clad in white armor and brandished a golden spear. The white wings etched on his back seemed to have grown larger, creating powerful winds with every flap. He levitated high in the sky, with his hands held out, eclipsing the sun as he embraced the world.
"Let this sinner feel the wrath he has brought upon himself. Guide him to the place he belongs, whether heaven or hell. Oh Lord, though I am not worthy, I shall carry out your rightful judgment."