As fire is enveloped by smoke, a mirror by dust, the foetus by the womb, so is this enveloped by desire. Knowledge, O son of Kunti! is enveloped by this constant foe of the man of knowledge, in the shape of desire, which is like a fire and insatiable. The senses, the mind, and the understanding are said to be its seat; with these it deludes the embodied (self) after enveloping knowledge.