for "Microvitum" and literally means "possessing or with micro-life". He believed that microvita are smaller and subtler than physical atoms and subatomic particles, and in the psychic realm contribute to "pure consciousness". Sarkar claimed that they would be recognised by conventional science. Sarkar gave the intuitional theory of Microvita in 1986. Sadhana A central point in Sarkar's philosophy is the concept of Sadhana. He described Sadhana as a practice for "the transformation of fearful love into fearless love". For Sarkar, Sandhana was concretized by the practice of meditation. He recommended to his disciples the daily practice of individual meditation and the weekly practice of collective meditation. These weekly meetings of his disciples, called Dharma Chakras, are preceded by the collective singing of a few Prabhat Samgiita (or "Songs of the New Dawn", composed by P. R. Sarkar himself) followed by Baba Nam Kevalam kiirtan, then the mantra called Samgacchadvam. The mantra Nityam Shuddham marks the end of the collective meditation, then the spiritual gathering will end with the Guru Puja mantra. Social and political philosophy Law of Social Cycle The concept of Varna describes four main socio-psychological types, whereby human psychological and physical endowment and social motivations are expressed: the Vipra (intellectual), Kshatriya (warrior), Vaishya (acquisitor) and Shudra (labourer). Varna, in Sarkar's perspective, however is more than just a psychological trait but rather an archetype, approximately to Michel Foucault's notion of epistemes, which are broader frameworks of knowledge defining what is true and real. Sarkar clarified that Varna is not the same as Hindu idea of "caste". He was an ardent advocate of building a casteless society, in which everyone gets equal opportunities to fulfil their highest human potential based on their physical, psychological and spiritual strengths. To materialize this, Sarkar propounded Prout. Sarkar's "Law of Social Cycle" applies these traits in a theory of historical evolution, where ages rise and fall in terms of ruling elites representing one of the above-mentioned traits. This "law" possibly connects to the earlier cyclical historical ideas of Sri Aurobindo, with a focus on the psychology of human development, as well as Ibn Khaldun, among other macrohistorians ideas about cycles. However, along with a cyclical dimension — the rise and fall of ages — Sarkar's theory exhibits a correspondent linear dimension, in that economic and technological "progress" are considered critical in terms of meeting the changing material conditions of life. Ultimately, for Sarkar, true