The body is compared to a city. The understanding is its mistress. The mind living within the body is the minister of that mistress whose chief duty is to decide.
शरीरं पुरमित्याहुः स्वामिनी बुद्धिरिष्यते। तत्त्वबुद्धेः शरीरस्थं मनो नामाथचिन्तकम्॥