The point of a "word avalanche" is that the same syllables are repeated, or nearly repeated
An hour passed since Thurs day find us. Awake, eye ope..n. Time is four. Give in.
In our past, sins’ thirst de..fined us. A wake I hope in time is for...giv..en.
A "wake" is gathering following a funeral. The "meaning" is secondary to the poetry, but roughly "An hour passed since Thurs day find us" (it is 1am on Thursday morning) "Awake, eye open" (I can't sleep) "Time is four. Give in" (Now I've been awake for three hours and I will stop trying to sleep) "In our past sins' thirst defined us" (This is obscure, I think it means that we were known for wanting (thirsting) to sin) "A wake I hope in time is forgiven. (also obscure, I think it means that I hope to be forgiven of my sins before my funeral)
Or as described by the post author
1:00 AM, staring at the ceiling. 3 hours later, now and I need to sleep. I kept thinking back to the mistakes I made. Please, let it pass and secret keep.