What does it mean that purpose changes over time?

The purpose that drives you at 30 may not be the same at 50 — this is growth not failure.

Example: A software engineer spends her twenties consumed by a purpose to prove she belongs in the field — shipping ambitious projects, earning promotions, collecting credentials. By thirty-five, she has proved it. The purpose that once generated fire now generates nothing. She feels adrift and interprets it as burnout or depression. But it is neither. The purpose completed itself. It did what it was built to do. What she needs is not recovery from failure but renovation — a new purpose calibrated to the developmental stage she has grown into, perhaps mentoring the next generation of engineers or building something whose value outlasts her career.

Try this: Draw a simple timeline of your life divided into roughly five-year segments. For each segment, write down what felt like the driving purpose — what got you out of bed, what you organized your decisions around, what felt most important. Do not judge or edit. Just describe. Now look at the transitions between segments. Where did a purpose exhaust itself? Where did a new one emerge? Where are you right now — in the middle of a purpose, at the end of one, or in the disorienting gap between? Label each transition as a completion, a disruption, or a slow fade. This map is your personal purpose biography, and it is the foundation for understanding where you are headed next.