At one time, the idea of communicating with people while they were dreaming would have been regarded by most scientists as hokey New Age stuff. But now a research group has done it:
What people can do during lucid dreams was unexpected:
“Overall, the researchers found that it was possible for people while dreaming to follow instructions, do simple math, answer yes-or-no questions, or tell the difference between different sensory stimuli. They could respond using eye movements or by contracting facial muscles. The researchers refer to it as “interactive dreaming.” – Cell Press, “Real-time Dialogue with A Dreaming Person is Possible” At Sciencedaily (February 18, 2021) the Paper is Open Access.”
The researchers hope that their find will help people who must cope with nightmares or other sleep disorders.News, “Yes, we can communicate with people when they are dreaming” at Mind Matters News
Later, they hope subjects will describe dreams so they can check whether recall after the fact matches descriptions in real time.
See also: Your soul has no Off switch: A major modern misunderstanding of the human mind is to assume that it is like a machine with an “on” and an “off” switch. (Michael Egnor)