Stephen Hill, founder of the "Hearts of Space" in 1973, considers that "many of the artists are very sincerely and fully committed to New Age ideas and ways of life". Some composers like Kitarō consider their music to be part of their spiritual growth, as well expressing values and shaping the culture. Douglas Groothuis stated that rejection of all music labeled as "new age" would be to fall prey to a taboo and quarantine mentality, as most of the music belongs to the "progressive" side of new-age music, where composers necessarily do not have a New Age worldview.