The Night of the Buddha's Awakening.
In 1st watch sees his own past lives. In 2nd watch, generalises main characteristics to every one else's past lives. In 3rd watch logically abstracts the linking core essentials: when this becomes sufficiently clear - Eureka!
This is a format for contemplation in general. A reverse variation on this is to take a 'finished' teaching and 'map' it to one's own observations & experience via a more general application.