Ermm only one thing comes to mind. I have a friend that i met a few years back that wanted to learn energy manipulation and i taught him some basic stuff and he did the rest himself, etc... The thing is that when i was "scanning" a person for instance i would see everything as orbs of light and lines of light(representing various things within the energetic body) but when he did it at first, cause i didnt force him to imagine what i was i was using to represent things, he saw various things that made no sense to me hehe. The default way of his subconcious to represent what he was seeing. Also meaning that he is the only one to understand those symbolic things that turned out. Sometimes he saw waves of water like a mini ocean in the shape of a person. Sometimes a glowing tree and sometimes dragon.
To cut things short what im trying to say is that because i didnt force my way of "how things are supposed to be percieved" when you do exercise A or B his subconcious took over and used its own symbols to represent the various things he was seeing. Maybe that is whats happening to you.
The reason why manny people see things similarly, in my opinion, is because they read the same books that discribe in much deteil what you are ought to expect while while seeing certain things or read on the internet what other people saw and what it meant when you see that certain shape or color. Anyway in the end he started seeing things in a manner that is very close to the way i do simply because its easier to express yourself when the symbolic system your subconcious uses is close to the one another person would use.
But just so you know its very easy to reprogram your subconcious and the symbols it uses to represent certain things if you find it too confusing the way it is now. If it is indeed the case here, in your situation, i would still suggest first understanding what the hell it means(what your currently seeing) so you know what you are changing. (IMG:
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I hope this helps in some way or another hehe.