We are in agreement there is much to be grasped in the realm of psychic phenomenae. I believe all minds are connected to the greater mind. This form we possess like that of networking infrastructure sends and receives all energy.
When you lay to sleep you also have sight even though your eyes are physically closed. All senses work; smell, touch, sound, sight, and emotion. Traumatic events may possibly resemble a jump start to the psyche and neurological components involved with sight or visions.