"The truth, however, is that the rational soul is the substance through which the body subsists."

"... Some hold that the body is the substance and that it subsists by itself, and that the spirit is an accident which subsists through the substance of the body. The truth, however, is that the rational soul is the substance through which the body subsists. If the accident—the body—is destroyed, the substance—the spirit—remains."

‘Abdu’l-Bahá, Some Answered Questions