While yantras are cool symbols, it's a mistake to think they do anything without
following the tantras that give rise to them. Which is to say the mantras,
pujas, etc.... They are talismans and have as much effect as what went into
them. They are not the same thing as Rudraksha, Narmadeshwar Lingas, Shree
Shaligrama, Hatha Jodi, etc... These items are self installed deities. Yantras
must be installed. Crystal Meru or 3d Shree Yantras are the middle ground
between this installed and must be installed form of deity. I still recommend
Siva Linga with Yoni as the ultimate glyph for meditation, good energy, and
puja. All deities can be worshipped with the linga, as it is a pointer to the
most auspicious.

Mahamritunjaya yantra has points up.


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