Most people try to time an event with transits alone. BNN says an event must pass three gates before it can happen at all.
The gates
Gate 1 - Promise. Does the birth chart even allow this event? Gate 2 - Activation. Is a slow planet (Jupiter, Saturn, Rahu or Ketu) opening the window this year? Gate 3 - Delivery. Is a fast mover (Sun, Mercury, Venus, Mars, Moon) delivering it this month and day?
A transit means nothing if the birth chart never promised the event.
This is why transit forecasts so often fail. They jump straight to Gate 3 and skip the question of whether the promise exists and whether the window is open. BNN predicts the year first, then the month, then the day - and only after all three gates agree.
Timing is not a single trigger. It is three locks opening in sequence.