Although history of yantra science is older than that of worshipping age, yet it is still a center of attraction. Keeping in view the difficulties being faced for worshipping through the mantra, worshipping of mantra was easily accepted. For yantra while there is no easy method for making yatra. The lines, alphabets, numbers, are made by similarity methods, the metailc, alphabetic and written yantras are devoted to its god and are used for worshipping and wearing.

Anything made, keeping in view, the time, country and character is successful, therefore any of its user should always keep several important aspects in his mind. Even a small mistake may give adverse results instead of good ones or it can be a failure and ineffective. Yantra is mystery in itself, a mystery that can  be felt by experience only. The first condition of yantra is its confidentiality. The word yantra originates from' yan' metal which represents controlling and centralization. A yantra is of a great help for concentrating on a particular god. for the intended spiritual power. As a proof in some types of worship, it is placed before the person performing the worship for eg shri yanta, ' bagla mukhi yanta' etc. Like mantra's there are several shapes and designs of yantras available in great numbers. They are prepared in different varieties depending upon the purpose.

Yanta science is a deep science capable of giving results in few seconds. The god, Brahmin, medicines, matras and yantra's give results according to once feelings. Hence if a yantra is written with a ordinary intention, its effect will also be an ordinary one. it is only  a silly mistake to think that  a small yantra is not capable of giving good result. Is an atom very big in size ? if we think carefully it is only an atom which brings a sense of fear to the whole world. In order to energize a yantra particular date, tithi, nakshtra, month and time are selected according to the intention and purpose for which they are made. Material used for yantra ie ink, pen and paper (base material) of different types are used depeding on the motive of the user. You should always believe and have faith in yantra because it is the belief and faith that can establish link with the god. All types of work pay only with preserveness and peacefullness. A distortion is bound to come in a work done in anxiety and haste. A disturbed mind is likely to disrupt a systematic approach, and if a system is disturbed how can anybody expect of getting a spiritual power.

As mantras are the soul of the supreme being (god), so is yantra considered place of living for god. Hence precautions which are taken for the use of mantra should also be used for yantra. The details of precautions will follow. Because of yantra has been accepted as the place for living of god, therefor it is essential to have full faith and confidence in preparing yantas. While making yantra its creator should have an holy and pious mind towards line, circles and triangles to be used in it. In practice it is found while writing yantra, its creator has to undergo a deep storming and pulsating feelings, but he should not worry about it.

Miraculous and devine powers in lie in yantras. As a result we are benefited by its glance, worship or by wearing it. We should be careful while using these yantra's. Guru pushya, ' ravi pushya' , eclipse, ' diwali', ' holi' are auspicious nights when every use of yantra is highly beneficial and effective. During this time, direction of planets and moon have no value. So its advisable for its user to use these appropriate occasions.