Although I'm a native Hindu from India, my knowledge of Hinduism is confined to Mahabharata, Ramayana and few mantras from Upanishads.

I want to know if there are references to yantras in Puranas, Ithihasas, Vedas, Upanishads, etc which allows one to know thoughts of others and also influence thoughts of others through those yantras. If yes, what were such yantras called and what protections were recommended against them?

What crime would the people or person who used such yantras to know the thoughts of others be guilty of?

What crime would the people or person who used such yantras to influence the thoughts of others be guilty of?

What punishment is recommended for people who use yantras to know and/or influence thoughts of others? What karma will they suffer?

I in think such technology has been in existence since 1960s. I can show links for such if required.


Highly accomplished Yogis can read what's going on in other's minds. This they can achieve by a process called Samyama. Here Yantras are not required.

This is a Yogic Siddhi and thus not a sin. Even deities know our thoughts and are witnesses of all our actions.

Patanjali Yoga Sutras Vibhooti Pada chapter has the following sutra:

  1. pratyayasya para-chitta-jnanam ||

By making Samyama on the signs in another’s both knowledge of that mind comes.

Swami Vivekananda expounds on this sutra and says the following:

Suppose each man has particular signs on his body, which differentiate him from others; when the Yogi makes a Samyama on these signs peculiar to a certain man he knows the nature of the mind of that person.

To know what Samyama is you need to read chapter 3 of the mentioned text from the start.

Dharana, Dhyana and Samadhi when done at the same time that's called Samyama.

trayam ekatra samyamah ||

(These) three (when practised) in regard to one object is Samyama.

To do Dhyana properly is quite difficult, to achieve the state of Samadhi is of course exceedingly difficult. So, we can assume how difficult it would be to accomplish Samayam. That's why the results that are obtained through it are kind of spectacular.

  • Please look at this site: stopeg.com and searching on Google for synthetic telepathy. Going by my experience I feel such technologies have been in existence 1960s. Isn't having such technology evil, and the religion doesn't talk about it, seems to allow it. Apr 18 '19 at 10:23
  • Since it is a achieved by Yogic practice, which in itself, erases all sins, so to be able read others' minds is not sinful from the perspective of my answer .. but I will have to go through the sites u have mentioned to know what they actually do to know others' thoughts .. also as I have said, influencing others thought seems to be not right @NeedAnswers
    – Rickross
    Apr 18 '19 at 10:26
  • Thanks, which spellings? from my own texts or those in the yellow quote?
    – Rickross
    Apr 18 '19 at 10:44
  • @Rickross Also, samadhi is the end step.What is meant by three done at the same time?
    – user17294
    Apr 18 '19 at 10:47
  • @commonman accomplished yogis when we first close eyes Dharana happens, then within few seconds Yogi enters stage of Dhyan and then Samadhi quickly. Within quick span Yogi enters Atma stage! Apr 18 '19 at 10:50

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