progressing up the mastery levels
As your ear becomes increasingly discriminative, you start enjoying more complex pieces of music. Same goes for your mind, eyes and tongue. You leave your favorites behind as you move up the mastery levels.
This is one of the reasons why test of time is so effective. Not only you make the environmental stochasticity work in your favor but you also benefit from the fact that your filtering mechanisms are improving over time.
I personally find these dynamics kind of scary. When you keep discarding what (and who) you used to hold dear to your heart, life starts losing its meaning little by little. It is just a matter of time when what you hold on to now will look tasteless.
What is really great? What is really true? I do not think we could even recognize the truly great if it was staring us in the face today.
How does it feel like to be up there at the highest level of maturity? Is there even such a final level? If not, then there is no hope that the truth will ever be accessible to us.