What was spoken to Maharaja Pariksit and what is very dear to the pure devotees is Srimad-Bhagavatam. Srimad-Bhagavatam is mainly full of the narrations of the activities of the Supreme Unlimited, and therefore it is the science of bhakti-yoga, or the devotional service of the Lord. Thus it is para, or supreme, because although it is enriched with all knowledge and religion, it is specifically enriched with the devotional service of the Lord.