Why and how are certain verses selected as invocations before classes in the Bhakti tradition? / The term \u201cplenary portion\u201d is used throughout the Bhagavad-gita and Srimad Bhagavatam commentaries. What exactly does this term mean? / Can you suggest a good book about Krishna\u2019s childhood days? / How important is the observance of Ekadashi in one\u2019s Bhakti-yoga practice?