Richard Wagner in Bayreuth by Friedrich Nietzsche

The relation of the two constituent forces to each other, and the yielding of the one to the other, was the great requisite by which alone he could remain wholly and truly himself. At the same time, this was the only thing he could not control, and over which he could only keep a watch, while the temptations to infidelity and its threatening dangers beset him more and more. The uncertainty derived therefrom is an overflowing source of suffering for those in process of development. Each of his instincts made constant efforts to attain to unmeasured heights, and each of the capacities he possessed for enjoying life seemed to long to tear itself away from its companions in order to seek satisfaction alone; the greater their exuberance the more terrific was the tumult, and the more bitter the competition between them.

In addition, accident and life fired the desire for power and splendour in him; but he was more often tormented by the cruel necessity of having to live at all, while all around him lay obstacles and snares. How is it possible for any one to remain faithful here, to be completely steadfast? This doubt often depressed him, and he expresses it, as an artist expressed his doubt, in artistic forms. Elizabeth, for instance, can only suffer, pray, and die; she saves the fickle and intemperate man by her loyalty, though not for this life. In the path of every true artist, whose lot is cast in these modern days, despair and danger are strewn. He has many means whereby he can attain to honour and might; peace and plenty persistently offer themselves to him, but only in that form recognised by the modern man, which to the straightforward artist is no better than choke-damp.