Visions, according to my personal experiences, are seen through three ways or, if I may add one, four ways: dreams during sleep, visions seen while my eyes are closed before the Blessed Sacrament, visions seen while I am conscious or in my waking state and natural impressions captured by my camera that, I learned later, have prophetic significance. Let me term the fourth way as "photo-vision" -- or prophetic vision captured through photographs.
The most common are visions seen through dreams and the most rare are visions seen while I am wide awake.
Seeing visions while I am conscious and awake are done two ways: seeing a vision with my own eyes but only I can see it (in my recollection, this kind of vision happened only once and it happened during one of my daily activities); and seeing visions through my mind's eye (this happened a number of times during Holy Masses).
There is still one way that I have difficulty putting a terminology on and this is the fifth way of seeing visions. It's as if God put into my eyes how He sees and it happened during the Holy Masses I attended way back before.
