Final answer:
Keats believed that beauty alone could raise one's senses to the spiritual world, a concept deeply rooted in the Romantic movement's values of individual emotional experience and the transformative power of aesthetics.
Step-by-step explanation:
John Keats, a prominent figure in the Romantic movement, held the belief that beauty alone could elevate one's senses to the spiritual world. This perspective aligns with the Romantic era's emphasis on aesthetic experience and individual emotional response over rational analysis and societal norms. Keats's poetry often explores the transcendental qualities of beauty and art, suggesting that through the appreciation of beauty, one can achieve a deeper connection with the ethereal and eternal aspects of existence. This outlook is shared by other Romantic poets and philosophers, like Wordsworth, who sought divinity in nature and by Schopenhauer, who regarded aesthetic contemplation as a pure form of intellectual engagement devoid of worldly desires. The overarching theme of this contemplation provides an escape from the material world and a conduit to spiritual enlightenment.