Guru Meditation started as an error notice displayed by the Amiga computer when it crashes. It is now also used by Varnish, a software component used by many content-heavy websites. This has led to many internet users seeing a "Guru Meditation" message (or the variant "Guru Mediation") when these websites suffer crashes or other issues. It is analogous to the "Blue Screen of Death" in Microsoft Windows operating systems, or a kernel panic in Unix.
It has also been used as a message for unrecoverable errors in software packages such as VirtualBox and other operating systems (see Legacy section below).
The term "Guru Meditation Error" originated as an in-house joke in Amiga's early days. The company had a product called the Joyboard for the Atari 2600 home video game console, a game controller much like a joystick but operated by the feet, similar to the Wii Balance Board. Early in the development of the Amiga computer operating system, the company's developers becam