In any situation, there is what needs to be done and what needs not to be done. All we have to do is be right about which is which, and do what needs to be done, without a thought for what is in it for us. Our place is to be what the situation needs us to be with no interest in how we might manipulate/exploit the situation for our good/gain/profit/advantage. Sincerity and spontaneity-- not contrivance and deceit-- make all the difference in making where we are a good place to be in each situation as it arises, all our life long.
It does not matter what we think, what we believe, what we want, what mood we are in, how we feel, whether it is a good time for us or not. All that matters is that we do what needs to be done, where it needs to be done when it needs to be done the way it needs to be done because it needs to be done, without caring about what is in it for us, or what we stand to gain or lose, by doing it. Get that down and we have it made, and the world has it made as well.
Optimal is a range, not a point. It is a subjective range, not an objective measurement. It exists as an approximate, and temporary, location between less than optimal and more than optimal-- for people who don't have much to do beyond wondering about their present state of satisfaction with their life, or their degree of functioning/success at what they are doing. Reality is a similar range of subjectivity. "Actual" and "apparent" and "illusion" are words used in accessing reality by those wondering how real something is. How real something is is how real we say it is. A broken arm is more real than a broken heart, though unless we experience both at the same time, we may be hard pressed to determine which hurts the most. Reality is more, or less, real depending on how it is experienced at any point in time. Our experience of our experience requires us to be present with our experience, alert to our experience and aware of ourselves being aware of our experience. How often do we do that? How long can we manage to maintain that kind of focus and concentration? For what purpose? Who cares? We drift through our life. We hardly ever actually live it, aware of what we are doing. I sometimes look at my watch without actually seeing what time it is. Or eat lunch without tasting it, unless it is really good or really bad. Where are we when we are not here, now? Why do we drift away? Why do we live without knowing what we are doing? How many years are we actually alive in the life we are living? How real are we really? How real is "real life"?