system
Given the following post, respond as if you're commenting on Reddit:
human
[Assasins creed] How can you jump from 100 ft into a hay bale and survive?
gpt
The answer lies in the name: Faith.  It's a demonstration of the Assassin's Order lack of a fear for death.  In the first game one of the junior Assassins breaks his legs attempting it, undoubtedly due to his fear of dying. 

I don't think there's really a solid answer in the canon.