Lyric discussion by WrySatyr 

Cover art for Woodstock lyrics by Crosby, Stills, Nash & Young

My personal thought is that "the garden" isn't the Garden of Eden from the Bible, but rather, it's the pristine state of the Earth, prior to mankind sprawling like roaches and debasing everything it comes in contact (ie, causing deforestation, pollution, and the extinction of many species). It is about holding the world we live in as sacred and recognizing that we are made up of such stuff and the need to hold ourselves accountable.