Only on very brief occasions has Zenithral met his mother, due to her fanciful nature and spirit of wanderlust. But he remembers one calm afternoon when she came by his grandparents' home, sharing stories of the places she had been and the things she had seen. With excitement in her eyes she had described meeting a creature just like these and how she'd befriended it. Something about... goodness, or positive thinking? Yes, it had definitely been something about thoughts, connecting mentally with the creature, much like letting a dog smell your hand.
As Zenithral considers the strange floating beings, one of them pops out of existence again, sent back to whatever plane it came from. Surely the other one, the one that had used Zenithral's face to flip itself over, does not have much time left for this world either.