The relative phenomena of the world however they appear are without essence, mere names, mere sounds, mere designations, not the slightest bit of difference between names and meanings exists, innate from the beginning, not to be sought elsewhere, the nature of the mind, without a name, mahamudra free from proliferation, it is equivalent with the nature of space, without a name from the beginning, non-arisen by nature, free from the proliferation of signs, all-pervading, unmoving and unchanging like space, empty throughout all time and always selfless, not the characteristic of concept, like a mirage of a river, not bound, not liberated, having never moved from the original state.

-- Mahasiddha Virupa