Complex sentence: The king later reincarnated as the tertön ("treasure revealer") Jigme Lingpa, who recalled the teachings he had received and, recognizing the time was ripe for them to be practiced, put them down in writing and began to teach.
Split into simpler sentences: The king later reincarnated as the tertön ("treasure revealer") Jigme Lingpa. Then, recognizing the time was ripe for them to be practiced, put them down in writing and began to teach.