Tamils divided them into five types namely Kurinji, Mullai, Marutham, Balai and Neithal.  They distinguished two types of morals as internal and external.  Internal and external organs are divided into seven categories.  The grammer tholkappiyam is proof that those who divided the land also formalized the deities belonging to that land.  Many Tamils who saw earthly deities also saw deity worship.  In literature like Saiva Vainavam, they worshiped the deities according to castes and systematized with musical nuances.

Saiva world philosophy books are in Tamil language which is in many languages of the world.  Contains various religious texts in Tamil languages.  All the scriptures point out that it is God who is the subject of unlimited bliss, the beings who are capable of enjoying bliss, and the obstacles that prevent them from enjoying bliss.  The best books available in Tamil language.

1. Elampuranar Urai –Tholkappiyam, Stratha Publication, 6/16 Thoguppu Venkatasalam Theru, Thiruvallikeni, Chennai.
2. Aiivu kovai - B.Subramaniyan – Esaiyarasi Pullications, 25, Periyar Nagar, Thiruvanaika, Thiruchi.
3. Chirppi Balasubramaniyam – Thamar Publication, Private limited, 49 kovil Estate, Amateur, Chennai. – 600040.
4. Thachchanamoorthi A – Tamilaga Nagarigamum Panpaadu, A.B 1108, The deal Colany, 3 rd Street, Merukku Ennur, Chennai – 600040
5. Ragul Sankiruthyayan – Vaalgavilieruinthu Gangai Varai, Tamilil Muthu Meenachchi, Bharati Buththagalayam, Chennai.
6. Loganayaki M – Katturai Kanikal, Katturai Kanigal, Rose Publication, Plot no 28, Banjalai Nagar, Kollu Medu Aavadi, Chennai 600062. First edition 2013.