Prime Minister Narendra Modi addressed the gathering on 4th International Yoga Day celebrations at the Forest Research Institute in Dehradun on Thursday. Speaking at the event, PM Modi said from Tokyo to Toronto, from Stockholm to Sao Paulo, yoga has become a positive influence in the lives of millions. He added yoga is beautiful because it is ancient yet modern, constant yet evolving. It is a ray of hope for our future. In yoga we have the perfect solutions to problems we face.