There’s nothing wrong with "mountaintop experiences." Jesus and His friends had them. But if we’re not careful, we may begin depending on that good feeling to get us through the day rather than remembering who it is that is holding us.
The beef that I have with makeup is that it keeps me from totally depending on Jesus for my comfort. When I wear makeup, I use it as a shield that I hope to be seen instead of my real face. Recently Jesus reminded me that He wants to be that one thing that makes me feel good about myself.