Jupiter moves roughly one house per year and circles the chart in twelve. Across an 84-year life that is seven complete laps - seven chapters, each revisiting the same houses in the same order.
The chapters
0-12 childhood imprint, 12-24 awakening, 24-36 building, 36-48 the midlife reckoning, 48-60 clarity of purpose, 60-72 legacy, 72-84 inner release. Each lap returns Jupiter to where it started - and tends to re-trigger the same theme, twelve years on.
Events do not happen at random. They rhyme on a 12-year beat.
This is why a person is fired at 30 and returns triumphant at 42, or marries at 36 and faces a defining test at 48. The Yatra - the journey of the slow planet - is the engine. Transits only fine-tune the timing once Jupiter has opened the door.
Map your own laps and the pattern is often startling: the big turns of your life sit suspiciously close to the 12-year marks.