santuṣṭaḥ - satisfied; yarhi - when; varteta - carries on; brāhmaṇaḥ - a brāhmaṇa; yena kenacit - with whatever; ahīyamānaḥ - not falling short; svāt - of his own; dharmāt - religious duty; saḥ - those religious principles; hi - indeed; asya - for him; akhila - of everything; kāma-dhuk - the mystic cow, milked for fulfillment of any desire.

When a brāhmaṇa is satisfied with whatever comes his way and does not fall away from his religious duties, those very religious principles become his desire cow, fulfilling all his wishes.