Source of knowledge in Indian old texts

Lord shiva and Goddess Parwati dialogues are found in Indian old texts : The secrets are told and explained in these dialogues: The pertinent question which has been asked by our internal soul : That this texts who narrated as a writer from where he inspired : Whether in original they are really told and heard by writer or these interpreter of books are running from a time immortal in a same manner and in same line : These texts no doubt are very secret and showing deep study and analytical study upon the subject which we people fail to understand in practical in absence of proper guru : these books are treasure of knowledge :Number of books were written in which secret topics are explained
yoga yantra mantra Tantra and  number of religious topics are explained : Shiv Samhita Shiv savrodaya are said about Hath yoga : These texts are very authentic upon the subject but it requires practise and discipline to control our body in th guideline of proper trainer (Guru)