To Master Expectations, we do need to develop the ability to be able to absolutely, with complete 100% conviction, Expect the improbable and unlikely. Perhaps we know from experience when by chance, we had such Expectations, and they were met, it is something that *Can* happen.
In this understanding of the necessity of how things are, there is also the full understanding of how the unpleasant, of how negative consequence and such, are also a part of the system.
This is the Power of Attunement and Alignment. It is becoming One with the Way of the World. What that means in real every day terms, is we use our Energy more Appropriately, and thus more efficiently and effectively, and thus we have more to spare. More energy, always means more happiness, and if we free up enough Energy, we get to Joy.