I am perfectly confident that I could never adequately convey to any other human being the precise reasons why I continue to refrain from suicide—the reasons, that is, why I still find existence enough of a compensation to atone for its dominantly burthensome quality. These reasons are strongly linked with architecture, scenery, and lighting and atmospheric effects, and take the form of vague impressions of adventurous expectancy coupled with elusive memory—impressions that certain vistas, particularly those associated with sunsets, are avenues of approach to spheres or conditions of wholly undefined delights and freedoms which I have known in the past and have a slender possibility of knowing again in the future.
—H.P. Lovecraft - Letter to August Derleth, dated December 25, 1930.
An accurate rumination on motivation for living, written much more eloquently than I could ever.