I remember when I came out of an exam thinking I had done well and then I had a clue that maybe one answer was wrong, I remembered that I rather stop knowing, stop thinking about it, appreciating life instead. So first, it was just a memory. But then I realized that in life, it's a much more general sentiment - that instead of waiting for other people's judgment, I'd rather focus on my own feelings, that everything is fine. To go on with my life rather than anticipating other people's judgements that might be negative.