Spirit Kathleen told this to the Rev G. Vale Owen in the book Life Beyond the Veil, in The Ministry of Heaven section:

“When we come to earth, friend, we say one to another by the way that we are going into the land of mist and twilight, that we may, in the interior world which we find there, shed abroad somewhat of our light and warmth, For, indeed, that these be much needed we are able to sense, even in those far spheres from which we come. You may wonder by what process of chemistry or dynamics this is made possible to us; and, in detail. But we are able to give you a somewhat epitomized account of this affair, and so we will, if it would be of interest to you, and those who shall come to read what we give you.”  Read More.