To continue on this idea of Environment... When we do any kiko we must be aware of our center, we call this Tanzen (or in the more common pronunciation tanden). From there we use the air to fill ourselves up which aligns the bones. This bone alignment creates the environment to relax without collapsing. With the bone alignment in place we can continue to expand without fear.
For the external spaces... we clean from the center first, the entrance next, and then the exit and find a place for the refuse. I like it when different aspects carry the same principles (there are always exceptions of course but basically they match up).
So we begin within ourselves (the very center or our universe) and then while always keeping our center work our way out to include everything and then bring everything back to us to find that we were all conjoined to start with. How cool is that?