Bhagavatapurana 3.28.26.p2

3.28.26.p2

bāhūṃś ca mandara-gireḥ parivartanena $ nirṇikta-bāhu-valayān adhiloka-pālān &

27. He should contemplate the Lord's arms on which the ornaments shine (as if) burnished by their use while turning the mountain Mandara and on which the protectors of the world depend; (which is the source of strength to the protectors of the world) and also contemplate the chakra of a thousand spokes (points) and of irresistible force and splendour as well as the Sankha which is the swan in his lotus-like hands (which held in his hand looks like a swan on a lotus flower.)