Śrī Caitanya Caritamrta · Text Madhya 3.8
পরাত্মনিষ্ঠা-মাত্র বেষ-ধারণ ।
মুকুন্দ-সেবায় হয় সংসার-তারণ ॥ ৮ ॥
parātma-niṣṭhā-mātra veṣa-dhāraṇa
mukunda-sevāya haya saṁsāra-tāraṇa
The real purpose of accepting sannyāsa is to dedicate oneself to the service of Mukunda. By serving Mukunda, one can actually be liberated from the bondage of material existence.
Read Śrīla Prabhupāda's purport on Vedabase.io