>> brian: we've introduced you to our next guest once before. you had a great reaction. a neurosurgeon. one day in 2008 when everything changed, he was driven into a coma by meningitis. his brain functioning and doctors believed he would not survive, but a miracle happened. he woke up from his coma claiming heaven exists and he has proof. he's sharing his story and a best selling book "proof of heaven." how do you know there is a heaven, doctor? welcome back. >> thank you. it's very good to be back. and it was shown to me in a very powerful way that ultrareality that many have described after near death experiences and then there was the proof that was offered up to me in who i saw in that realm. >> brian: and you are somebody who was not religious before, but certainly are now and you say first off, the headline would be there is a good. >> absolute -- god. >> absolutely.