Simply put, this is one for my top ten "desert island" collection. I've had this for about 20 years, first on vinyl and then CD, and have never tired of hearing it. Quite frankly, when I listen to this album I feel the presence of God, no matter how despairing I might otherwise feel. This is due in part to the use of just intonation--the beating of certain intervals on the organ recall the sound of water ripples, or something, and when the dissonances resolve into "true" harmonies it's somewhere between soothing and ecstatic, or both. However the liner notes indicate that Riley performed each of these pieces in real time using an organ and a system of digital delays, which is simply unbelievable given the stunning complexity of the result. I believe it is one of the most spiritually inspired performances ever put to record, clearly reflective of his studies in raga. This CD puts the alleged meditational intent of conventional "New Age" music to shame--this is the real deal, a true "Masterwork" as the previous reviewer stated, and the best work by Riley I've heard. In short, buy this CD.