If we find that we are not spontaneously engaged in hearing and chanting and the other prescribed devotional activities, we should engage in one or more of them according to regulation. Thus, every day without fail we chant Hare Krishna, worship the Deities, and hear or read Srimad-Bhagavatam. We actually regulate our lives around these prescribed activities in order to provoke thoughts and remembrances of Krishna, which is our goal.
Lectures from a Disciple, Vol. 2, Purpose of Sadhana-bhakti