One must have a thorough understanding of one's dreams if one is not to be troubled by them; there is a way of separating one's dreams from one's life which so often produces good results that I ask myself whether one ought not, at all costs, to try it, simply as a preventive, just as certain surgeons make out that we ought, to avoid the risk of appendicitis later on, to have all our appendices taken out when we are children." Elstir and I had meanwhile been walking about the studio, and had reached the window that looked across the garden on to a narrow avenue, a side-street that was almost a country lane. We had gone there to breathe the cooler air of the late afternoon.