Param Shiva Supreme god with supreme Shivling
Agni Shivling
Vayu ling check Sanatan Shiv Dharma
All tantrik breadth practice done under Vayu ling
All kundalini practice done under shiva
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Param shiva is shunya 🕉 beginning of Universe.
Shivling : All soul born by Shivling Shakti.
We all human being carbon copy of Shiva.