The mouth of this hollow , was at the bottom of a great rock , where by meer accident , i would say , if i did not see abundant reason to ascribe all such things now to providence i was cutting down some thick branches of trees , to make charcoal ; and before i go on , i must observe the reason of my making this charcoal ; which was thus : i was afraid of making a smoke about my habitation , as i said before ; and yet i could not live there without baking my bread , cooking my meat , etc . so i contriv d to burn some wood here , as i had seen done in england , under turf , till it became chark , or dry coal ; and then putting the fire out , i preserv d the coal to carry home ; and perform the other services which fire was wanting for at home without danger of smoke 我奉劝那些三思而后行的人,如果在他们的生活里,也像我一样充满了种种出乎寻常的变故,或者即使没有什么出乎寻常的变故,都千万不要忽视这种上天的启示,不管这种启示是什么看不见的神明发出的。关于这一点,我不准备在这里讨论,也无法加以阐明。但这种启示至少可以证明,精神与精神之间是可以交往的,有形的事物和无形的事物之间是有神秘的沟通的。