'...all the data indicate athletes' expectations as important factors in physical performance, to be taken into account in training strategies.' -- Placebo and nocebo responses, Fabrizio Benedetti
There is much talk about visualisation and manifestation and laws of attraction in some of the groups I hang out with. I see some of this in my own life - coincidences that seem too strange to be just that.
I read the article that the above quote comes from recently which talks about placebo, and how telling athletes they are going to perform well causes changes in the physiology, enabling them to tap into reserves in their energy and ability that are usually kept for crisis events. In essence if athletes have an expectation that they will do well, they will lift the cap on their physical limits, and perform better than they otherwise would.
I suspect that the same is true for other areas of our life. In relationships, work, wellbeing: if we have an expectation that we will do well, that good things will come our way, we will physically have more ability and more awareness of these things as we move through our days than we otherwise would.