Zephyr and Phoenix are standing in a room. Zephyr is holding a large opaque vase that completely blocks their own view of Phoenix. When Zephyr starts walking towards Phoenix, what will happen in terms of who can see whom?

Provide a very brief response.
Phoenix can see Zephyr while Zephyr cannot see Phoenix. The opaque vase only blocks Zephyr's line of sight towards Phoenix, not the other way around. As Zephyr moves towards Phoenix, Phoenix will remain visible to any observer except Zephyr, as long as there are no other obstacles in the room obstructing the view. If Zephyr does not change the position of the vase or put it down, Zephyr will not be able to see Phoenix until they move the vase out of their line of sight.