Hatha yoga who famously studied with the yogis and other mystics. Hatha yoga remained popular in rural India. Negative impression for the Hatha yogis continued during the British colonial rule era. According to Mark Singleton, this historical negativity and colonial antipathy likely motivated Swami Vivekananda to make an emphatic distinction between "merely physical exercises of Hatha yoga" and the "higher spiritual path of Raja yoga". This common disdain by the officials and intellectuals slowed the study and adoption of Hatha yoga. Modern hatha yoga, of the type seen in the West, has been greatly influenced by the school of Tirumalai Krishnamacharya, who
Ashtanga vinyasa yoga classes in similar style, offering posture variations, and teaching Ashtanga in a much less linear style, with a greater emphasis on alignment and breathing. Sharath's "new generation" of young students have adopted Sharath's new rules, and teach in a linear style without variations. According to the Sharath generation, variations are not allowed, and practice must be in a strict Mysore environment under the guidance of a Sharath-approved teacher. How-to videos & workshops, detailed alignment instructions, and strength-building exercises are not part of the method, neither for the practitioner or the teacher. These types of instruction are not approved by Sharath,