In Madhya Leela, CC the Supreme Lord Shree Chaitanya instructs Raghunatha Das as follows:
amānī mānada hañā kṛṣṇa-nāma sadā la'be
vraje rādhā-kṛṣṇa-sevā mānase karibe
Be humble like the grass and always chant the name of Krishna /
Within your mind serve Radha and Krishna.
Hari bol
Avadhoota Maharajah