P.R. Sarkar
Those spiritual revolutionaries who work to achieve progressive changes for human elevation on a well-thought, pre-planned basis, whether in the physical, metaphysical or spiritual sphere, by adhering to the principles of Yama and Niyama, are sadvipras.
The principles of Yama are ahiḿsá, satya, asteya, aparigraha and Brahmacarya. Ahiḿsá means not causing suffering to any harmless creature …