I interpreted the "as above so below" as that you take your current understanding of reality and 'mirror' it, as in try to see if the world can work in the 'opposite' way and still make sense.
As an example, if you believe that people who accumulate knowledge with age are more in control of the world, it is possible that infants are actually much less confused by the distractions of the world, and are better aware of how reality works, if not corrupted, and can influence it even more than most of the elderly.
The exercise is meant to, at the least, 'double' your capacity to think, because you, if able, now can view the world seemingly inverted.