The Buddha realized that different beings had various capacities, so out of his great compassion and skillful means he gave teachings that were right for different individuals. Although the essence of all teachings of all enlightened ones is to simply let be in recognition of ones own nature, the Buddha taught a lot of complex instructions to satisfy people on all the different levels. Tulku Urgyen Rinpoche https://m.facebook.com/story.php?story_fbid=1119462751491909&substory_index=0&id=661664957271693