The wild has taught me importance of resilience: Bear Grylls Grylls will next be seen on "Sunday Thrills With Bear Grylls", a two-hour special adventure stack starting May 23 that will present four thrilling, action-packed shows featuring Grylls. Share Via Email | A+A A- By IANS MUMBAI: British adventurer and survivalist Bear Grylls says the wild has taught him the importance of resilience and helped him imbibe a never-give-up spirit. "Life has truly been challenging for so many people around the world this last year, but if the wild has taught me anything, it is the importance of resilience and a never-give-up spirit," Grylls said.