This is a verse composed by a great devotee, Tulasī dāsa. He was a devotee of Lord Rāmacandra. So Lord Rāma and Lord Kṛṣṇa, there is no difference. When we speak Kṛṣṇa, that means He includes all other incarnations. In the Brahma-saṁhitā it is said,
- rāmādi mūrtiṣu kalā-niyamena tiṣṭhan
- nānāvatāram akarod bhuvaneṣu kintu
- kṛṣṇaḥ svayaṁ samabhavat paramaḥ pumān yo
- govindam ādi-puruṣaṁ tam ahaṁ bhajāmi
- (Bs. 5.39)
Kṛṣṇa is svayam. Kṛṣṇaḥ svayaṁ samabhavat paramaḥ pumān yo. Kṛṣṇa is paramaḥ pumān. Paramaḥ pumān means the ultimate Supreme Personality of Godhead. But He is always manifest in different incarnations, and of all the incarnation, Lord Rāma is the foremost, Balarāma. You have heard the name of Balarāma, Baladeva. Similarly Rāma, Rāma means the Supreme Enjoyer. Ramante yoginām anante sac-cid-ānanda-cirātmanīti rāma-padenāsau. Rāma means real bliss, and all the yogis, either dhyāna-yogī or a jñāna-yogī or a bhakta-yogī... There are three kinds of yogis. Everyone tries to enjoy that eternal bliss, and that is real pleasure. Therefore Rāma.
So this verse... Our, this respectable Indian lady, she will begin Rāmāyana... This Tulasī, actually it is not Rāmāyaṇa. It is called Rāma-carita-manasa. Rāmāyaṇa means Vālmīki Rāmāyaṇa, but people have taken it as Rāmāyaṇa. Actually, Tulasī dāsa has expressed his own feelings about his devotion to Lord Rāma, and therefore he has named it Rāma-carita-manasa, his mind full with service attitude for Lord Rāma. That is the real meaning of this book. But people have misinterpreted; they are going on just it is Rāmāyaṇa. And Rāmāyaṇa, of course, anywhere where Rāma's activities are described, that is called Rāmāyaṇa. That is another sense. But real Rāmāyaṇa means the Rāmāyaṇa composed by Vālmīki Rāmāyaṇa. Rāmāyaṇa composed by Maharṣi Vālmīki. And this is... It is a popular notion that this is Rāmāyaṇa, but actually this book is called Rāma-carita-manasa. So some of the description of Rāma are there, but not all the description. Rather there are many differences from the original Vālmīki Rāmāyaṇa. Anyway this is song of a devotee for his Lord Rāma. In that sense, you can call it Rāmāyaṇa, but this book is actually Rāma-carita-manasa.