The Hungarian with the magnificent name spent decades studying what happens when human beings are so absorbed they forget to be miserable — and found, at the bottom of all that research, something that looked remarkably like a child on a swing. Nasreddin called it 'the forgetting of self that is the finding of self,' and he did not need a grant to say it. Flow is not an achievement; it is what happens when you stop managing the experience and simply have it.
Each step builds on the last.