Thread by @mmpandit

If one enlarges the central portion of this Yantra, which appears to be made of copper, then one finds an interesting emblematic inscription in the centre which many such Jain Yantras carry:
Slow Thread for those who wish to know few basics.

https://twitter.com/anshpihu007/status/1367697453114298372

The Jain Yantras of old typically carry three basic parts to the Yantra.
The inner portion of central portion of the Yantra carries a design which is something which has an esoteric meaning in that script usually Devanagari although it may be in a derivative bhasha.

If you check the inner portion then that will have a few petals. Usually one central one will have the “xyz person who is to be benefitted or harmed “... although if the yantra is for Jana Kalyana, then it will simply have that motif (you can see the latter idea 💡 n this one)

The Yantra can be a Dharana yantra (nearly a decade ago, someone had shown me a Hanuman yantra for dharana belonging to his great grandfather who it was said could summon and speak to Bajrangbali )... such Yantras depend on how much a person knows to transfer the sadhana into it.

You hear often of how exacting Tantra Vidya is... well it’s true for a lot of things but for a lot of things it’s not quite as true as we believe it to be.
Depends on practice/practitioner and most importantly time of sadhana and type of guidance.
See here,-Mukhya Prana Yantra

https://twitter.com/mmpandit/status/1341162152133050378

Now, this particular yantra of Hanuman ji, typically requires a particular type of worship so we say BUT there are some crucial bits to it which only a person from the parampara OR somebody who has realised Hanuman ji can tell you... and that sort of thing can be invaluable..

Like that mostly nowadays you will see a typical yantra has numbers in the yantra in different squares...
These may be 2x2, 3x3 or 4x4 etc... 9x9, etc.
An example is shown below
Called Pandhrah yantra, commonly used for all round success...

This particular yantra nowadays will simply be used in copper.... these are typically sold in the market and as per me simply won’t show any result.
The real sadhana of each Yantra is completely different:
It must be started at a particular time, a special pen of a material used

Yantras made in the market (my 2 cents) are simply a money making business.... that’s my two cents.
Even when a yantra made by you “works” the sceptic in me will always wonder whether it worked because that was destiny!! no offence meant. But as I get older, I am more cynical!