Complex sentence: The demons were not annihilated, but were obliged to submit to the dharma, in accordance with the tantric principle of not eliminating negative forces but redirecting them to fuel the journey toward spiritual awakening.
Split into simpler sentences: The demons were not annihilated, but were obliged to submit to the dharma. This was in accordance with the tantric principle of not eliminating negative forces but redirecting them to fuel the journey toward spiritual awakening.