Whether that coherence obtains universally is a question that need not be answered here since only those parts where the coherence has actually been found become part of Science. ↗
But I would assert that despite the wide variety of yoga options and individual preferences, there is one universal element: the union of consciousness and movement, breath and awareness. ↗
Every man who has shown the world the way to beauty, to true culture, has been a rebel, a 'universal' without patriotism, without home, who has found his people everywhere. ↗