The City We Besiege

I never thought about how to describe the two major categories of events: youth and life. Youth, I think, is when people truly live. When youth fades, most people die without realizing it. Some seem alive but are no different from the dead. When they live the same day repeatedly, like ants trapped in place, what is the meaning of such a life? I have tried countless times to think about where this meaning can be found.