दुर्गमं सुगमं तत्त्वं भवेद् यस्य प्रसादतः ।
राधाकृष्णरसे मग्नं श्रीमद्रूपं नमामि तम् ॥
durgamaṁ sugamaṁ tattvaṁ bhaved yasya prasādataḥ |
rādhā-kṛṣṇa-rase magnaṁ śrīmad-rūpaṁ namāmi tam ||
(Mukunda Dāsa Gosvāmī in his Artha-ratnālpa-dīpikā on Bhakti-rasāmṛta-sindhu: 1.1.1)
“I offer obeisance unto him, Śrī Rūpa, who is absorbed in the rasa of Rādhā and Kṛṣṇa, and by whose grace difficult to understand tattva shall become easy to understand.”