Vaishnava Samhita. Narasimha Mehta Charitam I. Vol III Book VI Chp 15 Shlokas 38 - 39

देवानामपि सिद्धानां मुनीनामपि दुर्लभम् |
तद्दर्शयामि ते बाल रासनाट्यं मम प्रभोः ||
पश्य बाल स्थितप्रज्ञो रासलीलां महात्मनः |
यस्य दर्शनमात्रेण प्रेमोन्मादः प्रजायते || 

I shall show you the Raasa dance of My Lord which is never seen by even devas, siddhas and saints. I shall show you that Raasa dance having the darshan of which one gets intoxicated with loving devotion. See that attentively