Manifesting results in this life is a matter of our personal efforts and the complex circumstances of the world.
We can put in perfect effort and still fail. We can put in little to no effort and still succeed. It isn’t perfect; it is simply the way of things. Usually it’s a mix of the two.
We have the right to put in our efforts to achieve anything we wish. But we do not have any right to certain results. This is just the way of things. Observe it and you will find it to be true.
This is why “detachment” or “non-attachment” is taught. We should be detached from the results, non-forming of expectations.
However, we should be very passionate and involved with our efforts. That is where our mental and emotional energies are best invested. Anything else is just the sound and the fury signifying nothing.
In this way, we can live and work in this world while still maintaining our inner tranquility. Our passion and peace do not hinge on outcomes.