SB 7.10.12
katha madiya jusamanah priyas tvam
avesya mam atmani santam ekam
sarvesu bhutesv adhiyajñam isam
yajasva yogena ca karma hinvan
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
It does not matter that you are in the material world. You should always, continuously, hear the instructions and messages given by Me and always be absorbed in thought of Me, for I am the Supersoul existing in the core of everyone’s heart. Therefore, give up fruitive activities and worship Me.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
When a devotee becomes materially very opulent, one should not think that he is enjoying the results of his fruitive activities. A devotee in this material world uses all material opulences for the service of the Lord because he is planning how to serve the Lord with these opulences, as advised by the Lord Himself. Whatever material opulence is within his possession he engages to expand the glories and service of the Lord. A devotee never performs any fruitive or ritualistic ceremony to enjoy the results of such karma. Rather, a devotee knows that karma-kanda is meant for the less intelligent man. Narottama dasa Thakura says in his Prema-bhakti-candrika, karma-kanda, jñana-kanda, kevala visera bhanda: both karma-kanda and jñana-kanda — fruitive activities and speculation about the Supreme Lord — are like pots of poison. One who is attracted to karma-kanda and jñana-kanda spoils his existence as a human being. Therefore a devotee is never interested in karma-kanda or jñana-kanda, but is simply interested in favorable service to the Lord (anukulyena krsnanusilanam), or cultivation of spiritual activities in devotional service.