Now I would like to elaborate on how to walk through a wall, apparition-style.
First, a little more background on where and when I did this. I did this while attending the Silva Method course, where everybody had to walk through wallls.
What is the Silva Method course? I would describe it as a course that teaches a combination of certain mind techniques - including ESP, LOA, RV, reiki, channelling and creative visualisation. What the course does is blend these different components into a single system with various specfic tools. You can easily google "Silva Method" or its founder "Jose Silva" to find out more.
The part about walking through a wall is an expanded version of remote viewing. If you do not know what is remote viewing, click some of these links -
here, here and
here. Essentially, RV is about mentally projecting yourself to other places, so that you can see what's going on there. For example, you could sit on a sofa in your living room, but project yourself (or try to project) to a location thousands of miles away, to see what's happening there.
(Naturally this kind of stuff has been of interest to
the military and intelligence agencies, but in ordinary life, it turns out to have relatively few applications).
In the Silva Method of RV, you do not merely try to "see" a place. You will instead visualise yourself being physically there. You then walk around the place and see if you can successfully gather information.
Naturally, not everyone is going to be able to do this on their first try. It takes practice. To know whether you're succeeded, you would need independent corroboration. Without the benefit of scientifically controlled conditions, the only way you get your corroboration is if you have anecdotal evidence like this -
-- you project yourself to a familiar place (eg your uncle's home)
-- you detect something which you had not known before (eg you see that your uncle has got a new cupboard with three shelves and four drawers, on the left wall of the first bedroom on the 2nd floor.
-- you call your uncle to check, and he tells you that yes, last week he just bought a new cupboard with three shelves and four drawers, and he has placed it on the left wall of the first bedroom on the 2nd floor.
To stretch your confidence during the Silva Method, you are also asked to do a variety of things. For example, you are asked to visualise yourself walking through a wall and experiencing what the wall is like. You are also asked to try merging with a tree, or a coin. You will experience that merging with a wall feels different from merging with a tree or merging with a coin. But it is difficult to explain with words - it would be like explaining the taste of potatoes to someone who has not eaten them before.
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Personally I am not a fan of RV. It is an interesting topic but it doesn't have much practical application, at least for me. It doesn't feel easy to me either. Generally you can classify the esoteric mind tools into two broad categories - the passive/receptive (where you seek to receive information) and the active/creative (where you seek to mould and create). My wife does well with the passive/receptive; I do better with the active/creative stuff.