Srimad-Bhagavatam: Canto 5 - Chapter 1 - Verse 27

Sanskrit:

मनोवचोद‍ृक्करणेहितस्यसाक्षात्कृतं मे परिबर्हणं हि ।विना पुमान् येन महाविमोहात्कृतान्तपाशान्न विमोक्तुमीशेत् ॥ २७ ॥

ITRANS:

mano-vaco-dṛk-karaṇehitasyasākṣāt-kṛtaṁ me paribarhaṇaṁ hivinā pumān yena mahā-vimohātkṛtānta-pāśān na vimoktum īśet

Translation:

The true activity of the sense organs — mind, sight, words and all the knowledge-gathering and working senses — is to engage fully in My service. Unless his senses are thus engaged, a living entity cannot think of getting out of the great entanglement of material existence, which is exactly like Yamarāja’s stringent rope.

Purport:

As stated in the Nārada-pañcarātra: This is the conclusion of bhakti. All the time, Lord Ṛṣabhadeva has been stressing devotional service, and now He is concluding by saying that all the senses should be engaged in the Lord’s service. There are five senses by which we gather knowledge and five senses with which we work. These ten senses and the mind should be fully engaged in the Lord’s service. Without engaging them in this way, one cannot get out of the clutches of māyā.