390. (7) The conjunction of a person's spirit with the body is due to the correspondence of his will and intellect with his heart and lungs, and their disjunction to the absence of that correspondence. Since it has not been known before that a person's mind-by which is meant the will and intellect-is his spirit, and that the spirit is the person, and since it has not been known that a person's spirit has a pulse and respiration just as the body does, it could not be known that the pulse and respiration of the spirit in a person flow into the pulse and respiration of his body and produce them. Since a person's spirit possesses a pulse and respiration just as the body does, it follows therefore that there is a like correspondence of the pulse and respiration of a person's spirit with the pulse and respiration of his body, for the mind, as we said, is his spirit. Consequently, when the correspondence of these two motions ceases, a separation takes place, which is death. [2] The separation or death occurs when the body, owing to some illness or accident, comes into such a condition that it cannot operate in union with the person's spirit, for thus the correspondence perishes, and with the correspondence, conjunction. This eventuates not when the respiration alone ceases, but when the beating of the heart ceases; for as long as the heart beats, love with its vital warmth remains and maintains the body's life, as is apparent from cases of fainting and suffocation, and from the state of life of a fetus in the womb. In short, the life of a person's body depends on the correspondence of its pulse and respiration with the pulse and respiration of his spirit, and when that correspondence ceases, the life of the body ceases, and his spirit departs and continues its life in the spiritual world, a life which is so like his life in the natural world that he does not know he has died. Most people enter the spiritual world two days after leaving the body. Indeed, I have spoken two days afterward with some.