Angels, still ugly, angels in kindergarten - Paul Klee's angels are characterized by a quiet, ironic cheerfulness. The humor of his brilliantly simple line drawings overlays the tragic background: Klee painted his angels during the final phase of a life-threatening illness. Thus, his angels are not fully formed; they are "still groping," "still untrained in their walking," or they ponder: "from where? where? to where?" Klee's angels are still in transition, struggling for their angelic transformation. The renowned Jungian analyst and psychotherapist Ingrid Riedel explores Klee's unique angel drawings and reveals: "Even over these rather tragic figures, there almost always hovers a quiet, serene smile that reconciles with the situation and lifts it a little beyond.".