Short answers, pulled from the story.
Aesthetics is the branch of philosophy that studies beauty, taste, and related phenomena. In a broad sense it includes the philosophy of art, examining the nature of art, artistic creativity, the meanings of artworks, and audience appreciation.
The Latin term aesthetica was coined by the philosopher Alexander Baumgarten in 1735, initially defined as the study of sensibility or sensations of beautiful objects. Its earliest known use in English appeared in a translation by W. Hooper in the 1770s.
Aesthetics emerged as a distinct branch of philosophy in the 18th century, when philosophers engaged in systematic inquiry into its principles. Its roots reach back to antiquity, including Pythagorean philosophy in the 5th and 4th centuries BCE.
Aesthetics debates this directly. The school of realism holds that aesthetic properties are objective, mind-independent features of reality, while response-dependent and subjectivist views argue that beauty is in the eye of the beholder. Kant proposed a middle path of subjective universality grounded in shared dispositions.
The aesthetic attitude is a disinterested way of engaging with art and nature, appreciating an object for its own sake without ulterior motives or practical consequences. For example, experiencing a violent storm through it means focusing on its patterns of lightning and thunder rather than its immediate dangers.
Comparative aesthetics analyzes traditions including Western, Indian, Chinese, Islamic, and African aesthetics. Indian aesthetics analyzes art through life emotions called rasas, Chinese aesthetics centers on the three perfections of poetry, painting, and calligraphy, and African aesthetics stresses the intuitive, emotional, and communal nature of art.