The Śaiva Siddhānta tradition is the earliest Śaiva Tantra college and was characterised by public rituals done by clergymen. Some in their texts, such as the Niśvāsatattvasaṃstrikeā have already been dated into the fifth century.[79] Their scriptures (the Śaiva Agamas) and essential doctrines are shared by one other traditions https://youtu.be/1bdBE_QGcvU