caves and you hear that crash and it's a roar, it's like thunder but deeper and louder and more charistic. i felt h. >> we all need to become aware of how we are treating the earth. what we are taking from it and that we're taking far more than weeed. the moreonscious you become of that, the moreare and respect for e earth you will have. >> you g a shock and feel you share responsibility for what's haening. reporter: critics of such ents say ey' nothingore than commcial advture tri sold in esoteric paaging -- rackets cloaked by promises of spiritual awakening. angaangaq and the participants say that's not true. >> i'm not there to pump money out of people. i'm there to give them. but of course it costs money to come here. it costs money to establish a camp. so it had to be paid. >> is it part of a money-making spiritual machine? i ink, i tst my inition more tn that. and i kn the difrence. reporter: the hours-long hike under the midnight sun to the top of a mountain is challenging for all of the participants. but no one complains. it's what they came for. and tonight, the reward is a speci

it's been ten years since he last performed live at a charist convert here in new york. his mark still felt here, especially at the new york theater workshop, where a david bo e musical is one of the hottest tickets in town. "today in new york's" tracie strahan is at the theater this morning. >> reporter: darlene, this took so many peoplevoy surprise, waking up to hear this news. david bowie's name is still on the poster and gets top billing for "lazarus." this is a musical he created. even the show's star, michael c. sought out because of david bowie. this is certainly how david bowie came to fame, that ballad "space oddity" in 1969 with the main character major tom. david bowie made his mark with hits like "fame," o ebel, rebel," "change," and pop hits like "modern love" and "let's dance." you're look right now at david bowie's last video "black star," which is an album just released on friday, which was also david bowie's 69th birthday. his son confirmed the news via twitter with a picture of he and his father saying, very sorry and sad to say it's true. i'll be offli