'Everything must be carried to term before it is born. To let every impression and the germ of every feeling come to completion inside, in the dark, in the unsayable, the unconscious, in what is unattainable to one's own intellect, and to wait with deep humility and patience for the hour when a new clarity is delivered: that alone is to live as an artist, in the understanding, and in one's creative work.
These things cannot be measured by time, a year has no meaning, and ten years are nothing. To be an artist means: not to calculate and count; to grow and ripen like a tree which does not hurry the flow of its sap, and stands at ease in the spring gales, without fearing that no summer may follow. It will come. But it comes to those only who are patient, who are simply there in their vast, quiet tranquillity, as if eternity lay before them. It is a lesson I learn everyday amidst hardships I am thankful for: patience is all!'
'Letters to a Young Poet' by Rainer Maria Rilke, 1929.