Agree with the quote!
My thought - we should just aim for our goal, and not have much expectations around what comes while trying to reach the goal!
It will never be easy, and we will have to adapt (if we want to survive). We will have to try and figure out a balance between what the world/destiny gives us and what we want!
Once we are able to balance this, we will be able to balance our expectations as well ... and will continue on the journey towards our goal!
Hope my rambling makes sense! :)
Upvoted your post 100%, since I resonate with the quote completely!