I — Ascending is what gives life its meaning
Over millions of years, natural selection built a steering system into you. Emotions. They are the instrument evolution gave us to steer toward what helped our ancestors survive and reproduce. Rising in status, gaining capacity, growing, becoming more powerful: these feel good, plausibly because the organisms that felt good doing them did more of them, and left more descendants. Falling, losing ground, shrinking: these feel bad because that pain was how our genes warned us away from what set us back. We still run on that same wiring today, even though the world that shaped it is gone.
At the center of our reward system is dopamine, and most people misunderstand it. Dopamine has less to do with the reward itself and more to do with anticipation, motivation, and pursuit. Its activity is often greatest not when you get the reward, but in the wanting, the pursuit, the anticipation of it. When you are climbing the mountain rather than standing at its peak. Its job is to make wanting feel compelling enough that you'll cross distance to satisfy it. To make you want to want.
This is why "Ascending is what gives life its meaning" isn't just some metaphor. It's a foundational feature of your hardware. The sensation people call "purpose" is what it feels like to be climbing something your biology recognizes as worth climbing. To climb is the meaning of life.