Perhaps you mean aesthetics?

Dictionary
as·cet·ic (?-s?t'?k)
n.
A person who renounces material comforts and leads a life of austere self-discipline, especially as an act of religious devotion.
adj.
Leading a life of self-discipline and self-denial, especially for spiritual improvement. See synonyms at severe.
Pertaining to or characteristic of an ascetic; self-denying and austere: an ascetic existence.
[Late Greek ask?tikos, from Greek ask?t?s, practitioner, hermit, monk, from askein, to work.]
ascetically as·cet'i·cal·ly adv.
aesthetics
also spelled esthetics, the philosophical study of beauty and taste. To define its subject matter more precisely is, however, immensely difficult. Indeed, it could be said that self-definition has been the major task of modern aesthetics. We are acquainted with an interesting and puzzling realm of experience: the realm of the beautiful, the ugly, the sublime, and the elegant; of taste, criticism, and fine art; and of contemplation, sensuous enjoyment, and charm. In all these phenomena we believe that similar principles are operative and that similar interests are engaged. If we are mistaken in this impression, we will have to dismiss such ideas as beauty and taste as having only peripheral philosophical interest. Alternatively, if our impression is correct and philosophy corroborates it, we will have discovered the basis for a philosophical aesthetics.
