[...] something Rilke says about poetry in his novel The Notebooks of Malte Laurids Brigge (1910). Poems are not, he explains, “feelings—those one has early enough—they are experiences.” And from experience, he slips into memories, and launches into a page-long litany of them, and then he says (translator: Burton Pike):

But it is still not enough to have memories. One must be able to forget them. . . . For it is not the memories themselves. Only when they become blood in us, glance and gesture, nameless and no longer to be distinguished from ourselves, only then can it happen that in a very rare hour the first word of a line arises in their midst and strides out of them.