What limits U? You do! We all limit ourselves. Limits are necessary in order to work our problems out. Our minds can only hold a certain amount of information before it is boxed all in so the information can be worked out. The important point to remember here is that, U have to be aware of your limits and their purpose. Know that once you come to your limit, you are on the threshold of a new box of limits.
So build box after box. Build your limits, break them, then build new ones, break them, and so on forever. In time, as we increase our capacities, we will gain the ability to build bigger boxes, simultaneously even. In doing this, U speed up your evolution and lifetimes. Life times can be measured by how large your box is, how many U have and break, and how many boxes of others you break, but that is for another discussion.
-Luci