The Supreme Lord Śrī Kṛṣṇa, whose glories and activities are pleasing to hear, at once appears on the seat of my heart, as if called for, as soon as I begin to chant His holy activities.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
देवदत्तामिमां वीणां स्वरब्रह्मविभूषिताम् । मूर्च्छयित्वा हरिकथां गायमानश्चराम्यहम्
devadattāmimāṃ vīṇāṃ svarabrahmavibhūṣitām | mūrcchayitvā harikathāṃ gāyamānaścarāmyaham
SB 1.6.33