In plain words
That is why Śrī Rāmānuja, on the path called Viśiṣṭādvaita, made that supreme principle known in many ways, sinking in the divine principle of Prema and enjoying Ānanda. Some said the path of karma is the chief one, others that the path of Jñāna is the best, others again that the path of Bhakti is the highest; so each spread whatever seemed right to him. But all have believed that among them all Bhakti, the path of Prema, is the chief.
This Prema is God. This Prema is the jīva. All living beings are reflections of the Paramātma. The whole world is filled with Brahman. Whatever object we see, whatever matter we think of, whatever we do, all of it must be full of Prema. This whole world is the form of Prema. The universe is the form of Viṣṇu. There is no place in the world that is not He, no name that is not His. So to regard everything as the form of God and to experience it so is the root principle of the true supreme principle. Nārada Maharṣi took this very path, and said, "Tyāgo bhavati, tṛpto bhavati, ātmārāmo bhavati." That is: "Lord! Every devotee who drinks Your sweet essence and tastes the nectar of Your Prema is content. He becomes the form of immortality. He is full of Ānanda. He is absorbed in tapas. Grant me that," he said.
Man's Ajñāna melts in the essence of God's Prema
In the world, trees, birds and beasts do selfless service to the world. But man keeps betraying his own kind, his mother and father, his teacher, and in the end even God. He makes a show of Satya, Dharma, Prema and Ahiṃsā, but does not see them truly. He does not practise them. He cannot recognise the truth "However much you have, it is for your food; however long you live, it is for the burning-ground."