Optimal experience (flow state) is something that we make happen. For a child, it could be placing with trembling fingers the last block on a tower she has built, higher than any she has built so far; for a swimmer, it could be trying to beat his own record; for a violinist, mastering an intricate musical passage. For each person there are thousands of opportunities to expand ourselves.” ― Mihaly Csikszentmihalyi (1934-2021), Flow: The Psychology of Optimal Experience