As to the second meaning of the word spirit, this mechanism of the physical body, which works from morning till evening without winding like a machine, and which stands up to all the turmoil of life, encounters all difficulties, and endures everything that comes to it, one day falls flat; it is just like when the steam or electricity, or whatever it was that kept the machine going, suddenly gives out. A physician says that the man's heart failed, or his blood pressure was too high, or something like that as an explanation of death. It means that a person who was active and sensitive is no longer active nor sensitive. That which was most important in him has left. So much the physician can tell you; but what was there he does not know.