SB 1.6 - The eternal nature of devotional service

By service of the Absolute Truth even for a few days, a devotee like Nārada attains firm intelligence in Kṛṣṇa. When Nārada would give up his current body, he would become the Lord’s associate. Serving the Absolute Truth means rendering service to the Lord under the direction of a bona fide guru, who is a transparent via medium between the Lord and the devotee. By such training, the devotee gets intelligence in transcendental service, which leads him to become one of the associates of the Lord in the transcendental world, after giving up the deplorable material worlds. Intelligence engaged in Kṛṣṇa’s devotion cannot be thwarted at any time. By His mercy, one’s remembrance would continue at the time of creation as well as at the time of annihilation. Since the Lord is eternal, anything done in His service is permanent. Transcendental service rendered to the Lord accumulates birth after birth, and when the devotee is fully matured, he is eligible to enter into the association of the Lord. Such accumulation of God’s service is never vanquished, but increases till fully matured.