Painted in 1891, I Lock My Door Upon Myself is the defining canvas of Belgian Symbolism and one of the foundational images of late nineteenth-century European decadence. The title is borrowed verbatim from Christina Rossetti's poem Who Shall Deliver Me. A red-haired woman rests her chin on her hands at an austere table, gazing past the viewer into the painted distance. The objects around her — a withered lily, a bust of Hypnos, a closed window, the title-quoting frame inscription — compose an iconography of voluntary enclosure.
Khnopff worked the room as a chamber of refusal. The figure has chosen interiority over the world outside; the painting offers no narrative, only the conditions of a sealed inner life. The picture is one of the most precise statements of the Symbolist project: that the most meaningful subject of art is the interior of consciousness itself, hermetically removed from the era's industrial optimism.
The painting hangs in the Neue Pinakothek in Munich. It remains the single image most often used to introduce Belgian Symbolism to readers encountering the movement for the first time.

