"[5] In The Music Box, John Metzger wrote, "Hart's latest release Spirit into Sound continues down the pathway of spiritual transcendence through the almighty groove.

Credit for this is no doubt due to vocalist Rebeca Mauleón who co-wrote eleven of the twelve tracks, but this is a road down which Hart has been traveling for some time....

"[2] On Allmusic, Stacia Proefrock said, "Though Spirit into Sound does not break much new ground creatively for Mickey Hart, it does feature some nice elements.

Hart's new age sort of blend of melodic elements and percussion are here again, centering around a very spiritual sound with heavy South American and African tribal influences.

"[1] In the Chicago Tribune, Daniel Durchholz wrote, "The album, composed by Hart and Planet Drum member Rebeca Mauleón, is a low-key polyglot of world-music styles, emphasizing rhythm, but paying plenty of attention to melody as well.