Mother Goddess
No saivam in sangam tamil era
No lingam. So, no connnectiin with Indus culture.
During sangam era( 200 BC to 200 AD)
and the Kalabra interrugnum(200 AD- 600 AD), Siva was unknown in Thamizh territory.
Saivam took root in this area only due to the conversion of Mahendra Pallavan
From jainism to saivism...post gupta era.
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So, what is easier than simply appropriating all the mother goddess shrines, putting a semi-round stone there, give some fancy and cock and bull story and ...lo! Entire thamizh land is now freed .
That is why we never find any moola murthy icon except the lingam in any saivite shrine. Nàyanmars had 100% state support. ( Chithambaram ..1000 AD..is an exception..perhaps the only exception..or may be the 'symbol' is
Tucked away in some nook.
It is significant that the same spot has a vaishnavite shrine as well.
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But people do not easily lose their cultual memories. For them, it is still shrine of mother goddess. Madurai, Kanchipuram.
Show some evidence from pre 600 Ad. In tamizh land. You cannot.
the semi-woman concept is exclusively associated with Siva , that too only in far south.
The reason is all these Siva temples were originally of KALI.
In Bengal, it is stand-alone DURGA that is worshipped, quite distinct and un-connected with Siva.
May be the case with Devi worship in Mysore and even in Kerala.
In Maharashtra, it is Bhavani.
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Siva is a very late arrival in Tamil country, .it all began only after 500 AD.
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All the sivan temples, were originally, KALI temples.
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Like KALI, .Krushna and Murugan were ancient deities of Thamizh land.
So, in sangam period ( 200 BC to 200 AD), and during the Kalabra interrugnum,(200 AD to 600 AD)there was very little of SIVA in ThamiZh country.
Siva stories were direct import from Gupta empire., especially, the puranic .
Rug vedic chants of bards
https://buff3r4.blogspot.com/p/rig-vedic-chants.html