The physical components are those that have no proper life after death. The skin is viewed as the covering around the insides of the body, which are divided roughly into bones and flesh. The flesh decays quickly, and in most cases has little spiritual value, but the bones form an essential part of the Tlingit spiritual belief system. Bones are the hard and dry remains of something which has died, and thus are the physical reminder of that being after its death. In the case of animals, it is essential that the bones be properly handled and disposed, since mishandling may displease the spirit of the animal and may prevent it from being reincarnated. The reason for the spirit's displeasure is rather obvious, since a salmon who was resurrected without a jaw or tail would certainly refuse to run again in the stream where it had died.