The Śaiva Siddhānta custom would be the earliest Śaiva Tantra university and was characterised by community rituals performed by clergymen. Some in their texts, like the Niśvāsatattvasaṃstrikeā are already dated to the fifth century.[79] Their scriptures (the Śaiva Agamas) and basic doctrines are also shared by the opposite traditions https://youtu.be/1bdBE_QGcvU