Khosrow Dehdasht Heidari, (ordained name, Dotetsuzenji) is an Iranian Zen- Buddhist monk who was ordained as a Rnizai Zen monk in 1985, at Sogenji Zen Monastery, Okayama, affiliated to Myoshinji (Mother Temple- Kyoto) under the famous Zen master, Ven. Harada Shodo Roshi. He was originally a teacher in the Ministry of Education in Iran, teaching for nearly 21 years. He graduated with a B.A. in philosophy from Osmania University, India. His field of research is psychology.He practiced different techniques of meditations in different countries. In the UK, he started teaching meditation to Iranians and non-Iranians alike. He is a member of the One Drop of Sogenji monastery in Japan.