Two verses stuck me as exceptionally worth remembering:
I cant capture a moment when nothing stays the same.
fond moments in my memory time will take him away.
To me, this poem is about realising that one is indulging in the past, recognising it, cherishing it but also having the courage to let go. it's about having the wisdom to see that if you don't (let go), time will change those capsules of the past as well.