[4] Editors at AllMusic rated this album 3.5 out of 5 stars, with critic Thom Jurek writing that much of this release "is unhurried, sonic meandering with a single pointed focus: to alter the listener's consciousness", drawing on Krautrock, Popol Vuh, Ash Ra Tempel, Cluster, and Neu!, featuring the band "at their most focused".

[1] Robert Ferguson of Drowned in Sound scored this release an 8 out of 10, stating that "this record couldn't actually be any more psychedelic if it had a picture of a stoned wizard on the front cover", made of "a kind of darkly ambient series of guitar riffs, the weight of which is quite incredible for a selection of songs which never really seek to propel themselves towards a peak, or use quiet/loud-style tension building devices".

[5] Beyond the 4th Door garnered 4 out of 5 stars in Mojo, where it was called "a further refinement of their liquid improv vibe [that] finds the quintet sitting on a mountain looking at the sun, high on Popol Vuh and who knows what else".

[7] Peter Watts of Uncut gave this album 4 out of 5 stars, characterizing it as "fine brooding spacerock", noting the courage of building up the songs so deliberately "with baby steps, notes tested for strength then played long, low and loud".

[2] Bonus track on some editions Eternal Tapestry Additional personnel