SB 11.27.53

mām eva nairapekṣyeṇa
 bhakti-yogena vindati
bhakti-yogaṁ sa labhata
 evaṁ yaḥ pūjayeta mām
Synonyms: 
mām — Me; eva — indeed; nairapekṣyeṇa — by being free from motivation; bhakti-yogena — by the performance of devotional service; vindati — achieves; bhakti-yogam — devotional service; saḥ — he; labhate — receives; evam — thus; yaḥ — whom; pūjayeta — worships; mām — Me.
Translation: 
But one who simply engages in devotional service with no consideration of fruitive results attains Me. Thus whoever worships Me according to the process I have described will ultimately attain pure devotional service unto Me.
Purport: 

The previous two verses were spoken by the Lord to attract those interested in fruitive results, and now the ultimate purpose of worshiping the Lord is described. The ultimate goal in life is Lord Kṛṣṇa Himself. Love for the Lord is the highest bliss, although ordinary people cannot understand this.