Fortunately, Sukkot is a long holiday and every minute is worth it.
The dvar Torah is here: Sukkos 3: A Fleeting World
It's still worth reading for the Sukkot finale.
He makes a a great point about how a sukkah reminds you of your own temporality.
I laughed when he mentioned how people fear yelling in the sukkah because others will hear them. In my family, we keep shushing each other (and laughing about it) any time someone says something one of us doesn't want the neighbors to hear.
May we carry this caution into every aspect of our lives, knowing that Someone A Lot More Important than our neighbors is listening!
On page 15, Rav Miller relates an interesting parable from Chovot Halevavot about a shipwrecked castaway crowned king of an isolated island.
On page 17, you can read about the stunning Mr. Herman who responded to his loss in the Great Depression by GIVING $1000!!!
(That's something like over $15,000 in today's money.)
On the very last page, Rav Miller explains how to relate to chol hamoed. (Hint: It's not how most people seem to think.)
Every year, several family members insist they must travel places & go hiking or whatever during chol hamoed.
This year, no one could.
And guess what?
Everyone was happy. No one even thought about it because the possibility simply no longer existed.
So everyone just focused on other things closer to home.
Food for thought...