Need help with a quotation from "The Garden of Forking Paths."

[Kinto]

I just finished this short read and it's great, but I am having a difficult deciphering what it means exactly. I was hoping someone could help.

"The author of an atrocious undertaking ought to imagine that he has already accomplished it, ought to impose upon himself a future as irrevocable as the past."

[Komm Suesser Tod]

I just finished this short read and it's great, but I am having a difficult deciphering what it means exactly. I was hoping someone could help.

"The author of an atrocious undertaking ought to imagine that he has already accomplished it, ought to impose upon himself a future as irrevocable as the past."

I'm not really sure what problem you're having with the quote.

[Kinto]

I found the answer to it already. The question that I had to answer for class was confusing me more than the actual quote. It was making me think I was wrong in interpreting it.
Thanks anyway peoples.

[tyven]

np