Good luck summoning an Angel because you will need it. You’ll need good timing as well because the two of you, or however many, speak entirely different languages from each other. You speak duration and they speak phenomenal flux, making them directionless, which is your next problem.
Angels have all the foresight of a toddler who has just learned to walk. The newly mobile have no planning skills. They don’t care what’s in their futures, this is not their concern. They just want to put something new into their mouths. Angels are like that too. I don’t know if they put things into their mouths or even have mouths, but what they do have is no future and no past, and though they lack these essentials and ought be pitied for it, they do have everything else which must be some consolation.