Final answer:
The theme of the three poems is the exploration of love and its significance in human existence.
Step-by-step explanation:
The theme of the three poems can be summarized as the exploration of love and its significance in human existence. While each poet approaches this theme differently, they all delve into the complexities of love and its impact on various aspects of life. For example, the Nightingale poem emphasizes the superiority of love over life, while the Renaissance love poetry uses unrequited love as a means to explore religion, relationships, and self-identity. The works of ecstatic love poets Rumi, Hafiz, and Kabir use love symbols to illustrate the human soul's desire to connect with God. Overall, the theme of love and its profound effects on individuals and existence permeate the poems.