6922. A fairly bright flame burning cheerfully once appeared and lasted for some length of time. The flame was a sign meaning the arrival of spirits belonging to Mercury, who move more speedily than other spirits. When they came they began immediately to run rapidly through the contents of my memory (all spirits are able to do this, and those present with a person are in possession of all that his memory contains, 5853, 5857, 5859, 5860). But because of the speed at which they went I could not ascertain what they noticed there. I heard them say time and again 'That is so'; but when they came to things which I had seen in heaven or in the world of spirits they said they already knew those. I became aware of a great number of spirits associated with them, stretching from behind my back a little way round to the left on a level with the back of my head.