1008 repetitions of x mantra times 40 days + energy transferred to Yantra at end of every day.
Small thread on Yantras.
Do market bought Yantras work?
Ans: No, market Yantras are mostly useless.
Why?
A Yantra is designed to hold a mantraic energy of a Devata. There is a process to it.
1008 repetitions of x mantra times 40 days + energy transferred to Yantra at end of every day.
Thus, the Yantra made on a device which becomes a receptacle for mantraic energy is made and suitable kept at end of sadhana for worship.
This is an arcane and rigid method
Note that these work especially well for protection… that’s one reason why one should have been doing sadhana for some time in the first place.