This is "Sonic Prayer" by Earthless, which is best described as a 40 minute jam of furiously heavy, psychotic riffs and, well, this is massive. (Massively groovy). Truly a giant, psychedelic masterpiece of an album that will have you completely hooked as soon as the first riff gets going. Also, you can buy assorted Earthless goodies here.
1. Flower Travellin' Man
2. Lost in the Cloud Sun