Search #yoga on Instagram and you'll see an engrossing range of images pop up. People are flexing in various poses, practicing inside and outside, in America and across the world, with different body types and skin colors. Yoga is an ancient mind-body practice that continues to evolve and mystify, much like the personal practice of its devotees. Enter Valerie Sagun into the #yoga hashtag stream, a practitioner of yoga who advocates self-love and positivity. In the past five years, Valerie has been downward dogging and sharing her practice through the online yoga community.