They are satisfied with what they sought in this worldly life. That is because they saw the fruitfulness and the good results of their efforts.
Comparing this image with:
(Working [hard] and exhausted. (3))
Both of them have strived but there is a big difference between the two results and the goals.
So, what an excellent endeavor that ends its doer to Heaven and its bliss! and what a wretched endeavor that ends with its doer to the Fire!
Just is the wise who evaluates the consequences.