There are two types of Vidyas mentioned in Hindu scriptures – Para and Apara. From the Vedas to the Puranas, these Vidyas have been told in great detail. Especially in the Upanishads and Yoga texts, detailed information will be found regarding these disciplines. This Para and Apara mentioned in religion is called worldly and transcendental. There are many people in the world who know these sciences in some form or the other. They describe the past and future on the strength of these knowledge and on the strength of this they also get the power to do magic and sorcery.
This Para and Apara Shakti is attained in 4 ways- by the deities, through yoga practice, by tantra-mantra and by any miraculous medicine or things. Before Para Vidya, it is necessary to have knowledge of Apara Vidya. Para Vidya is a miraculous science, on the other hand it is the way to know Brahma. The world is of 3 levels. One, the gross world, which is experienced in the waking state. Second, the subtle world which is experienced in dreams and third, the causal world which is experienced in sleep. A person who becomes awake in these three levels, remains in the sense of witnessing, becomes proficient in both para and apara vidyas. Introduction to Para-Apara: According to Mundakopanishad, Para is yogic spiritual practice and Apara is spiritual knowledge. The Vidya by which the knowledge of ‘Aksharbrahm’ is attained is ‘Para’ Vidya and from which the knowledge of Rig, Yaju, Sama, Atharva, Shiksha, Kalpa, Grammar, Nirukta, Chhand and Astrology is known, that is ‘Apara’ Vidya.
Para Vidya is that by which one can know about the pleasures of the heavenly worlds, through which the paths of attaining them are also known. Apara: In which the knower and the known are different. In this, all knowledge, whether it is about the world, comes about Brahman. Apara Vidya is that knowledge which is born out of the intellect of dreams and gives knowledge even to the formless. There are 10 Apara Vidyas: Education, Kalpa, Grammar, Nirukta, Chhand, Nakshatra, Vastu, Ayurveda, Vedas, rituals. In other places their parts are different, such as 4 Vedas and 6 Vedangas. The earth, water, fire, air, sky, mind, intellect and ego are called Apara Shakti in the Gita, because they are created and destroyed. These are false perishable forces (Gita 7/4). Only the one who knows this completely is a person who has immense power. Para Vidya: In which the knower and the known are not separate. It has its own knowledge, Brahma-knowledge. Para means the knowledge which gives knowledge beyond this mortal universe.
In the Upanishads it is said that Para Vidya is that knowledge, which is the awakened intellect and from it the Akshar Brahm is known (Mundaka. 1/1/5). Para ‘Vidya’ is a description of a different process of knowledge in which ‘what-what’ is known, the question does not arise. The Upanishads differentiate between ‘apara vidya’, the lower knowledge, and ‘para vidya’, the higher knowledge. Apara Vidya refers to the knowledge available in the Vedas and the sciences. Para Vidya gives the knowledge of the imperishable God and the divine nature of the soul. What is Para Vidya: The term Para Natural is used for those persons, things or events which some people consider to be real, but which are not part of nature or are beyond normal nature. The word ‘supernatural’ or ‘supernatural’ is also used for this. A person with parashakti or supernatural power is considered a miracle person, who has knowledge of past, present and future events and who has the ability to perform any kind of miracle at any time.