Ilya Kabakov (1999) Wings (How to make yourself better or how to become an angel):
You need to make two wings from white tulle fabric, using the same sketch that is appended to the project, and also leather straps for attaching these wings on your back and fixing them in place. After this, having stayed alone in your room (this condition is fairly important, for both the productivity of the impending activity, as well as for the avoiding undesirable reactions on the part of other people in the family) you should put on the wings, and sit completely without anything to do and in silence for 5-10 minutes, after which you should turn to your usual endeavors without leaving the room. After 2 hours you should repeat the initial pause again. After 2-3 weeks of daily procedures, the affect of the white wings will begin to manifest itself with greater and greater force.