"Ah, mastery... what a profoundly satisfying feeling when one finally gets on top of a new set of skills... and then sees the light under the new door those skills can open, even as another door is closing"

This quote speaks with the sensation of accomplishment and fulfillment that comes with mastering a new set of abilities. It is a pointer that with every brand-new skill we find out, we open a new door of chance and possibility. It likewise acknowledges that with each brand-new door opened, another door is closing. This is a pointer that life is constantly changing and developing, and that we must be open to finding out new skills and adapting to brand-new scenarios. It is a tip to embrace the journey of learning and development, and to appreciate the feeling of proficiency that features it.