The Shadow out of Time by H.P. Lovecraft

That is the world of which my dreams brought me dim, scattered echoes every night. I cannot hope to give any true idea of the horror and dread contained in such echoes, for it was upon a wholly intangible quality-the sharp sense of pseudo-memory-that such feelings mainly depended. As I have said, my studies gradually gave me a defence against these feelings, in the form of rational psychological explanations; and this saving influence was augmented by the subtle touch of accustomedness which comes with the passage of time. Yet in spite of everything the vague, creeping terror would return momentarily now and then. It did not, however, engulf me as it had before; and after 1922 I lived a very normal life of work and recreation.

In the course of years I began to feel that my experience-together with the kindred cases and the related folklore-ought to be definitely summarised and published for the benefit of serious students; hence I prepared a series of articles briefly covering the whole ground and illustrated with crude sketches of some of the shapes, scenes, decorative motifs, and hieroglyphs remembered from the dreams. These appeared at various times during 1928 and 1929 in the Journal of the American Psychological Society, but did not attract much attention. Meanwhile I continued to record my dreams with the minutest care, even though the growing stack of reports attained troublesomely vast proportions.