Even though Azrael could see all the living things in the mist, he still couldn't see the normal objects.
There might be a chance that he could walk straight into a trap and would get captured. But he didn't have any other choice.
It was either walking in the mist blind or using his ability to only see the living beings.
But one thing this ability allowed him to see was the layout of the entire forest. He could see where every wine was and whether something was obstructing his path or not.
This was because the entire forest was actually alive.
A sacred spear was a weapon created from the energy obtained from the tree of life which had grown on the fairy realm. The spear had the mystical powers to change form into different things on the user's command.
But now that the tree was gone, the two sacred spears which had turned into the forest and the mist were only pair of sacred spears left in the world.