“For surely devas do not greet and have a conversation with a manomayakaya.”
I cannot be certain, but it is probably with the manomaya kaya that visited the deva (or brahma) realms. It is not possible for a physical body to survive there.
– As I keep saying, we are stretching our imagination to “make sense” of such phenomena that we are not used to.
– Communications can be done with just the manomaya kaya, and identification too. Each brahma and deva are individual living beings.