It's not insane in itself -- it is a personal creative association. You have a natural and sovereign right to make those up anyway you see fit, as suits your own instant desire.
Now if you start expecting other people to acknowledge and subscribe to the map you have made of the persona of numbers, you may have a collision on your hands. I think of 1 as a holy number with saintly demeanor, for example, and 2 as a vibrant energetic and productive number. Perhaps we should start a religous war on this issue?