The whole purpose of tracking the point is, of course, to use the acquired knowledge to refine one's self. The osculating lunar apogee is that "realm" (perhaps better said as "context") within an individual that is going to be the most problematic and difficult to resolve. I've seen this manifest as a skill at which one is particularly good. It's the idea that, "I'm already good at this so you should listen to me," which perpetuates the selfishness. It's something like what the Greeks called hubris. The greatest obstacle to learning is what you think you already know. As the very old saying goes, "Those whom the gods would destroy, they first make mad with power." There is your motivation for learning what the apogee indicates. If you acquire resources, skills, or social influence without first conquering what is indicated by the apogee, you are on a path to your own destruction.
In the chart of a completely unselfish person, the context indicated by the apogee would have already been conquered and therefore would have already become useful, rather than problematic. This is also true of all the planets, signs, and aspects. Once the context indicated by the apogee has been conquered, you will have all the skill it entails, plus the awareness that selfish use of said skill would be nothing but destructive.
The Moon indicates many things regarding spiritual development. The osculating lunar apogee is not a physical body unto itself, but it is a quality of a physical body: the Moon. The apogee, just like the nodes, are qualities of lunar orbital dynamics. I must also assert that any and all changes within self are due to interaction between self and the Spirit. Any and all astrological information can only describe those changes, not cause them. It all boils down to the basic decision of whether to be selfless or selfish. That determines the big shifts in expression of astrological influences. It is my understanding that the context indicated by the apogee will be problematic until conquered and set right within self. When the change is made from selfish expression to selfless expression, then there will be a change in the manifestation of the influences in daily life.