[Gordopangrawit]

Hi illuminate,
Aside from symbols, there is a Taoist group across the planet that offers a kind of induction/initiation. As part of the 'ritual', there is the making of a spiral at that particular part of the anatomy.
This bit is true.
I once (from a different source) heard of a new chakra described as the shao-lin chakra that was being opened at the time (mid 1990s). In that region.
This bit is heresay.
It is my feeling that the 'symbol' is likely to relate to energy structures - eg. what is happening in that region of the body.
That and the possibility that symbols don't necessarily have meaning as such, but are are a manifestation of what is.
Bringing that which lies outside into the realm of form.

Good luck with your journey.
Gg.nz