From their
website:
Krishna consciousness is not something imposed on the mind. On the contrary, it's already inside of each of us, waiting to come out, like fire in a match. Chanting Hare Krishna brings out that natural, pure state of mind.
The chant is called a mantra, a vibration of sound that cleanses the mind, freeing it from anxiety and illusion. And this is a mantra anyone can chant. It's for people of all religions, all nations, all colors, and both sexes. No need to pay any fees, join any group, or turn your life upside down. Whoever you are, whatever you do, you can try the chanting for yourself and experience its result.
Krishna and His energy are fully present in the sound of the mantra, so even if we don't know the language or intellectually understand how it works, by coming in touch with Krishna we'll become happy, and our life will become sublime.
Hare Krishna Hare Krishna Krishna Krishna Hare Hare
Hare Rama Hare Rama Rama Rama Hare Hare
I also recall hearing some time ago that (despite the words to the contrary up there ^) they don't let women practice. Or at least don't allow them to be "renunciates." Anyone know if this is true?