Purpose vs Passion: What's the Difference?
Passion is a signal about energy — what pulls your attention now. Purpose is a direction you commit to and build structure around, whether or not the energy is present today. Passion tells you where to look; purpose tells you what to build. Following passion without purpose produces motion without accumulation.
Energy is data, not a plan
Treat passion as a reading from your instruments. It tells you something real about your pattern — and nothing at all about whether the thing is worth ten years.
Purpose survives a bad week
The practical test: what still deserves your effort on the days the feeling is gone? That answer is closer to purpose.