The phrase actually comes from Wittgenstein's picture theory- or The limits of my language are the limits of my world. What we know and how we related stuff to each other is bounded as if in a picture frame, a collage of experiences, exposure and so on. So, we just operate within those boundaries. We do make combinations and permutations but if there are finite objects within the frame, there are finite number of combinations even if we have unlimited capacity for processing information. (theoretically it can be infinite but from a practical perspective, it is finite).

So, it is escaping this frame that makes it Thinking outside the box.

BOX" is "MEMORY" from where old ideas, thoughts, concepts arise. While these old things can work as solutions to some or all technological problems, they are woefully inadequate when it comes to solving psychological problems. That is where thinking or perhaps at a profoundly deeper level of consciousness, NON-thinking must happen "OUT OF THE BOX".

The problem of anger, fear, jealousy, hatred cannot be solved IN THE BOX. One has to be totally free of old, stale ideas in order to look at psychological problems

I have tried to depict them through the medium of colours . For example ‘red' for anger etc.