Tirukkural 454: Avoiding Mean Associations

Wisdom appears to rest in the mind, but it really exists to a man in his companions.

Image of Satguru Sivaya Subramuniyaswami
Contemplation is man's power over his mind as he begins to go within himself. Concentration is man's power over his mind as he goes through life working out life's problems. And meditation is man's wisdom.
—Gurudeva