Yoga became a source of inner strength among people amid the novel coronavirus pandemic and inculcated faith in them that they could fight the virus, Prime Minister Narendra Modi said today. "Yoga shows us the road from stress to strength and from negativity to creativity," PM said as he addressed the nation on the occasion of the 7th International Yoga Day. "When Covid emerged, no country was prepared. At this time yoga became a source of inner strength. Yoga helps in self-discipline, it inculcated faith in people that they could fight this virus. Frontline warriors told me that they made yoga a tool in fighting the virus," PM Modi, who was dressed in an orange kurta, said.