SB 7.15.17
sada santusta-manasah
sarvah sivamaya disah
sarkara-kantakadibhyo
yathopanat-padah sivam
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
For a person who has suitable shoes on his feet, there is no danger even when he walks on pebbles and thorns. For him, everything is auspicious. Similarly, for one who is always self-satisfied there is no distress; indeed, he feels happiness everywhere.