Gretchen Rubin tells a story around this quote. It never really resonated with me because it was centred on her children. At least that's what I thought. It may also be that you don't have that sort of perception of time in your late twenties (which is where I am).
But maybe I can try to empathise.
Days feel long.
Days feel significant.
In a day, I can find my limits.
But when we look back on years, very few things stand out: the relationship that was, graduation, changing jobs, relocations, a first kiss.
Complete transformations of livelihood, appearance, and relationships take place seemingly in the blink of an eye.
I have a tendency to try to squeeze every last drop out of the day.
I've done this in the last few days. Rushing through routines, diving into work, replying to messages as an afterthought, brushing away conversation because I'm busy and heading to bed completely wired.
Even if I won one of those days, I wouldn't have appreciated it. The cost was so high that I can't appreciate it even in hindsight.
The best days have margin.
The significant moments will happen anyway.
Making sure I actually live in them when they do is worth more than accomplish all of the minutiae in the world.