We have said often enough that you are "all that is". This can be difficult to understand for fragments since they are immeresed in separation and not with unity. Creation though is the state of separation searching for unity. "All that is" comes from this infinite searching for the lost whole.
This is the path of the universe which you cannot escape. You are always on it. You are either resisting it trying to go in an opposite direction, or you are flowing with it - using the natural expansion to create your reality.
For the Self, or essence at the level of the Tao, there is no separation or fragmentation, or any of the qualities associated with such.
Since this greater part of you is unity with Tao then there is no greater aspiration. Do you see though, when we say greater, we do not mean better, we simply mean that nothing is beyond unity with the Tao (which could well be called a state of nothingness or no-thing-ness).
nothing > all that is