Nice article but come on... please remove any reference of John Friend. It doesn't help.
While I embrace the ideas in this article, i feel they are not necessarily unique to the tantric philosophy. I have been studying, practicing, and teaching the idea of non dualism under several names other than tantra for the past three decades. to say non dualism is unique to the tantric lineage is misleading.
Kashmir Shaivism did indeed originate in Northern India but embraces some aspects of the traditions from other parts of India, hence the use of the term "umbrella". To receive benefit from the study of this philosophy, one need not be too concerned about the geography.
Thankyou for this wonderful article!
Finally, an article that points out what Tantra is, even if done in a dry and book-report sort of way. Thanks, guys! And Adi: saying that Kashmir Shaivism couldn't originate in Southern India is a bit like saying North American English couldn't originate in England, on account of the miles between New York and London. :)
@Nora Isaacs: Kashmir is at the northern extremity of India. 'Kashmir' Shaivism cannot have originated in South India, which is 1500 miles away. Quite a gaping error to people who know anything about India whatsoever.