Meaning of “Old age surprises them while their minds are…”

Change is treated as the condition of the world, while our experience of life is shaped by judgment.

The verse places change inside a larger rhythm of seasons and purposes, making it useful for thinking about acceptance when one phase of life gives way to another.

The poem rejects living backward and immediately redirects attention toward action available in the present.

Stability is temporary, so practical judgment requires expecting change rather than treating present arrangements as permanent.

Seneca divides time into three conditions and gives the present special urgency because it is both available and quickly passing.

Seneca shifts the complaint from life being too brief to attention and time being poorly spent.