Human Design with Barbara Ditlow. Barbara was certified in Hatha Yoga from the Himalyan Institute in Honesdale, Pennsylvania in 1980 as well as in Bikram Yoga in 2003 and the Barkan Method in 2009. Ms. Ditlow has been a yoga instructor for thirty years in New York, Connecticut, and Texas. She is also certified in Feng Shui from the New York Metropolitan School of Interior design. She began her studies in Human Design in 2003 and is certified as an analyst in foundation, partnership, family practice and cycles readings as well as a Rave psychologist.