“Imagination can become as active in meditation as it is in dream sleep. Sometimes the mere vividness of the experience can convince the practioner that what he or she ‘remembers’ is a true recall of events. Since the critical faculties in the meditative state are somewhat repressed, it is important not to take some of the revelations that may occur too literally. There is a saying: “Even if the angels of heaven come to one with a special message, simply ignore them and simply carry on cultivating your focused attention.””
from ‘Natural Mind Meditation: Dzogchen Mahamudra and the Dynamic Awakening of Human Consciousness’ by Rodney. P. Devenish.