A psychic leader can pick a thread up off the ground and make a connection with the person that it came from. This leader is very powerful, so even a thread is enough for them to make a psychic connection with the person who was wearing the thread.
As you develop this psychic connection with the owner of the thread, you can tell that he is currently eating a cake (けい). Since the connection is so strong, you feel like you are eating the cake as well. It’s vanilla strawberry.