Caitanya-caritāmṛta 22.156-157
bāhya, antara, — ihāra dui ta’ sādhana ‘bāhye’ sādhaka-dehe kare śravaṇa-kīrtana‘mane’ nija-siddha-deha kariyā bhāvana rātri-dine kare vraje kṛṣṇera sevana
[baahya, antara, — ihaara dui ta’ saadhana ‘baahye’ saadhaka-dehe kare shravana-keertana‘mane’ nija-siddha-deha kariyaa bhaavana raatri-dine kare vraje krishnera sevana]
Blended reading (Sanskrit + English inline)
bāhya, antara, — ihāra dui ta’ sādhana ‘bāhye’ sādhaka-dehe kare śravaṇa-kīrtana‘mane’ nija-siddha-deha kariyā bhāvana rātri-dine kare vraje kṛṣṇera sevana
“There are two processes by which one may execute this rāgānugā bhakti — external and internal. When self-realized, the advanced devotee externally remains like a neophyte and executes all the śāstric injunctions, especially those concerning hearing and chanting. But within his mind, in his original, purified, self-realized position, he serves Kṛṣṇa in Vṛndāvana in his particular way. He serves Kṛṣṇa twenty-four hours a day, all day and night.
My note
Source: vedabase.io