Devotional service may be regulative or affectionate. One who has not developed transcendental affection for Kṛṣṇa should conduct his life according to scriptural injunctions and under the guidance of the spiritual master. In Śrīmad-Bhāgavatam (2.1.5) Śukadeva Gosvāmī advises Mahārāja Parīkṣit:
- tasmād bhārata sarvātmā bhagavān īśvaro hariḥ
- śrotavyaḥ kīrtitavyaś ca smartavyaś cecchatābhayam
"O best of the Bhāratas, it is the prime duty of persons who want to become fearless to hear about the Supreme Personality of Godhead, Hari, and to chant about Him and always remember Him." Lord Viṣṇu is always to be remembered and is not to be forgotten for even a moment. This is the sum and substance of all regulative principles. The conclusion is that when all the rules, regulations and recommended and prohibited activities in the revealed scriptures are taken together, remembrance of the Supreme Lord is always the essence of everything.