In the final chapter of Sartor Resartus, the anonymous editor asks; "How could a man occasionally of keen insight, not without keen sense of propriety, who had real Thoughts to communicate, resolve to emit them in a shape bordering so closely on the absurd?" This is a question which the reader, possibly confounded and stimulated in equal measure, will redirect in reference to the author when, a short while later, he or she finishes this bizarre work.
Sartor Resartus ("the tailor re-tailored") is a Philosophical novel (emphatically obeying this precedence) in which the abovementioned narrator introduces, nominally annotates, and concludes the life and more so the opinions of the singular Diogenes Tuefelsdröckh, university Professor and author of a text concerning the Philosophy of Clothes (both he and his work are fictional, but are presented as reality and offered to English speakers for the first time by the editor). Herr Tuefelsdröckh is a man of unknown genealogy, being deposited at the doorstep of his humble foster parents in a basket carrying his name (the (supposedly anti-) Christian name echoing the Greek tub-dwelling Cynic, the surname translating; "devil's dung"), a man who will cry, laugh, and love but once in his sequestered and thoughtful existence. The great body of the book is composed of quotations from Tuefelsdröckh's magnum opus and elsewhere in his correspondence. We follow him in sorrow and transcendence, through "Baphometic Fire-Baptism" and "Phoenix Death-Birth", and receive his opinions of the slightest and loftiest subjects concerning existence, self and surroundings. As the previous reviewer suggests, the second of the three books which constitute the novel is well located, as it is here that we find the essential chapters (including the famous; Everlasting Yea and Everlasting No) which document our Professor's spiritual agony and rebirth.
I would recommend reading Froude's masterful 'Thomas Carlyle: A History of the First Forty Years of His Life' in order to best appreciate the depth of the mental, physical, and metaphysical turmoil experienced by Carlyle himself as a young man, which culminated in his own highly individual conversion, or throwing of the devil off his back, and dedication to apply the genius he was excessively endowed with. It will further enable you to recognise various other semi-autobiographical depictions in Sartor. It is important to understand that this is the great man prior to his universal acknowledgement as such; a man who has little to show for his talents (a translation, the odd essay and biography), who has wandered and wondered in rags and alone (as he perhaps always would). But an individual who has read (perhaps) more widely than any man of his age in Europe (and I daresay, therefore, the world), and whose genius is already long established as obvious by any who have ever encountered him.
I think, compared to his breathtaking 'French Revolution' (truly among the great histories in the English language), this is unattractive and at times laborious to read. What Carlyle is communicating is demanding, and some will undoubtedly find it dense, which is not surprising bearing in mind the level and strangeness of his intellect. It betrays too vividly the negative features both of his complex, contradictory personality (here, his scorn for mankind is far more evident than his sympathy) and his prose (although he is not yet inventing words, and "Carlylelese" is not yet epitomized) is verbose, if not bombastic. His internal contradiction is somewhat touchable in his writing, and is projected onto his world-view. It is often difficult to tell when Carlyle (via Tuefelsdröckh) is in earnest, and, if he is, some of the ideas expressed are repellent (e.g. the segment on the repression of population, his derisive descriptions of the Irish (sadly, repeated elsewhere in his writings)). Despite these factors, I wholeheartedly believe that this book deserves to be read, and that the fortunes we gain in the reading are likely in accordance to our pains. Most chapters in this book contain at least one shard of startling profundity.
Sartor Resartus is, like its author, detached from any trend, school, or expectation, above both convention and reform. His sardonic assaults on everything from religious delusion to dandyism can be tiresome, but are purposed by a drive for man to commit not only to thinking, but to action. Many eminent Victorian writers regarded reading Sartor as a key moment in their intellectual development, and it is possible you will do the same. You might not enjoy the process of reading the book, but if it compels you to "do the duty which lies nearest thee", and contribute to the exquisite and eternal garment of truth and good, how profited you shall be!