Witness-Consciousness

The ego is the patron, the sense objects the audience, the intellect the dancer, the sense organs musicians playing on their instruments; and the lamp illumining them all is the witness-consiousness.
(Panchadasi, 10.14)

As a lamp reveals all objects while remaining in its own place, so does the witness-consciousness, itself ever motionless, illumine the objects with and without(including the workings of the mind).
(Panchadasi, 10.15)