Prepare a glass of wine with the dust of a very finely ground small pearl,
mixed into the glass with the feather of an owl. Make a toast to the objects
whose properties you wish to discover (having previously prepared the
objects by cleaning them with salt water and incense), and then take the
items into your hands. You will sense their properties or uses in ways
appropriate to the objects: you may hear music if it is musical, or feel
heat if it produces flame, etc.