Just as a house is needed for human beings in which they live happily, in the same way, a suitable place for residence for the living of GODs and GODDESSes has been called ‘Yantra’. The instruments are said to be the abode of GODs and GODDESSes. One of the instruments is also called ‘Devnagar’, which is why the language based on this script is called Devanagari (Traditional Hindi Script). In these Dev cities, not only the deity but also the Addev, Pratidhdev, Parikar, etc. of each GOD reside. Therefore, the Yantra is not just a humorous network of a few lines but is the abode of the Deities. With these instruments, a person gets the grace of the GODs, the GODs are pleased and provide everything. With the effect of these instruments, all kinds of material happiness, prosperity, opulence, peace of the Navagrahas (Nine Planets), destruction of obstacles, destruction of enemies, and destruction like death can be achieved. In other words, we can also call instruments as a means of achieving a goal in a person’s life, because a device is also a powerful means of fulfilling human desires, just as if a person lacks money in his life then he can achieve his goal soon by installing the SriYantra and worshiping it. Similarly, different instruments are mentioned in our scriptures. By which man can overcome them according to his sorrows and sufferings. Origin of the word Yantra: The word ‘Yantra’ is made of Yama metal. The meanings of this metal are opposite, transduction and vation, etc. respectively. According to this etymology, ‘Yachati Atreti Yantram‘ or ‘Yamayati Atreti Yantram’, the word ‘Yantra‘ is proved by the suffix ‘Tra’ by Yad Dhatu. Importance of Yantra: According to Agam, its derivation will be ‘Yachhati Triate Cheti Yantram’. According to this, two words will be formed from Yemen and Tranarup. It will make sense – ‘The person who controls his efforts in a particular shape and feels his prayers. The meaning of mantra and tantra is also told in the Agamas. On this basis, the ‘control of powers’ in the Yantra has been considered that ‘the Yantra is a storehouse of powers, by which the seeker can get enough energy on the strength of his spiritual practices.’ ‘Gautami Tantra’ also says – That is, one should always worship Lord Vishnu on Shalagram-rock, gem, machine, statue, and circle. It is not appropriate to worship only on the ground. In the ‘Yogini Tantra’, the places mentioned for the worship of Bhagwati are also instructions of the Yantra. In order to believe unity in the Yantra and Deity, it has been clearly stated in our scriptures that Yantra is mantrap, the mantra is the deity of GODs. Just as there is no difference between the body and the soul, similarly there is no difference between the yantra and the deity. Our scriptures also dictate that ‘GODs are not pleased without worshiping the Yantra.’. GODs are not worshiped without mechanical worship. Write the Deity’s Deity body form at the beginning of the practice. It is called ‘Yantra’ only by controlling all kinds of sorrows arising from defects like work, anger, etc. GOD is pleased by worshiping it. GODs are not pleased without worshiping the Yantra. Agam Shastrians have called it ‘Yantra’ only by preventing grief. Different types of powers are bestowed to the Yantras by mantras or other religious rituals. After this its power becomes infinite. Circles, squares, and even points are used as instruments because they all represent space energy. ‘Bindu (a dot)’ is a Sanskrit word and it symbolizes all those things that exist in this universe, that is, it is the first form of that supreme being, which is the root of all. So it is advisable to focus on any one point during meditation. The triangle of the device represents the centralized energy. If its peak point is upwards, it is considered to be a symbol of fire or an agile element or universal male power. The point at the bottom of the triangle represents the water element, which flows downward. It is of the dull element of cosmic nature and is associated with female power. A figure made of two triangles inserted into each other is the most commonly used device. It forms a hexagonal star that shows the origin of the world. The system of Yantra cultivation is also related to any physical (materialistic) medium, whereas in mantra cultivation, only ‘chanting’ is required. Some pictorial mediums are also adopted along with chanting mantras of Yantra Sadhana. Yantra is written on metal letters, banquets, or any other object by combining special types of pictures, lines, dots, numerals, and words. Three factors remain active in this – the sound effect produced by chanting the mantra, the visual effect produced by the graphs, and the physical effect generated by the object. The device prepared by regular method shows its miraculous effect when placed in a proper place & in the right direction, holding it in the throat or arm or hung somewhere. Deities of the GODs are in many forms and expressions and they are also decorated in a grand way by the clothes. But in any Yantra there is no shape of that GOD or any other deity, only some lines and numbers and letters are written in a certain order. Based on the shape and order of the lines and the numbers and letters, the device is given a specific name. The lines inscribed in the instruments give them a specific shape and the numbers and letters written between those lines give them a special power. It contains inscribed digits and letters of the deity related to that deity as well as a symbol of their power. This is the reason that the letters and digits inscribed in the Yantra are called Bijas (seeds) and only by focusing on them, the Mantras are chanted with a certain number of complete Vidhan Vidhi (Procedure). The texts of Tantra Shastra also state that the lines, spheroids, and of different types of instruments are influenced by divine powers. This is the reason that when a seeker chants a particular mantra with an eye on a device, it has a good or bad effect not only on his mind and body but also on the surrounding environment. This is the reason that even if there is some error in worship and worship and chanting of mantras, there is no harm, but if chanting mantras with a yantra, then success is achieved quickly. Smells for writing instruments: Different scents for writing instruments are mentioned in our scriptures. Sandalwood, blood sandalwood, saffron, ashtagandha are used extensively. Use only pure saffron. Do not use fragrant saffron. What is Ashtagandha Ashtagandha is made up of 8 items – agar, tagar, gorochan, kasoori, sandalwood, vermilion, red sandalwood, and camphor. Take care of them all. To prepare as ink, use rose water or use pure water. The law of pen for writing instruments: There are different laws for writing instruments in our scriptures. Instruments are written with pomegranate, jasmine, or gold pen. The device for which Legislature is agreed should work accordingly. Pomegranate or jasmine pen should be taken for 11 fingers. While writing the instrument, the pen should not be broken, it must be kept in mind. The holder, which should be fitted with a nib, should not contain even a fraction of iron. If you use Bhojpatra (Banquet) for writing the instrument, then take one big Bhojpatra(Banquet), as well as make sure that Bhojpatra is free of holes and festivals. A white paper can also be used in the absence of a banquet. Pran Pratishthana (Life) of the Yantra: Firstly bathe the Yantra with pure water. Then bathe the Yantra with milk & pure water (Ganges water). Then apply fragrant coating on the device. Perform Pran Pratishtha and worship by doing (Panchapochar or Shodashopchar) which is Indian tradition or by doing the baptism. Then meditate on your favorite deity and install the appropriate machine for the particular work by chanting the worship from the respective minister and lighting daily incense.