This interesting technique should be used by experienced practitioners, or if all other deepening techniques fail.
A practitioner aggressively imagines being located in the physical world, experiencing its intrinsic reality of perception, and not in lucid dreaming. This should be done while in a state of separation from the body with a sense of vision present. If successful, the surrounding lucid dreaming space will immediately brighten and sensory perception of lucid dreaming will exceed the normal experience of reality.
If this technique produces no clear results after a few seconds, another technique should be used.