The personal metaphor bears the touch of personification, as an element of nature gets the attribute of a living being in it. Nevertheless, it is not strictly the personification, and can at best be called a species of personification.
The difference between these two figures may be clearly noted in the following three matters : First, personification deals with nature, abstract ideas, of inanimate things, but the personal metaphor is concerned only with some element of nature.
Second, the personal metaphor, like a metaphor, implies a comparison. but personification does no such thing.
Third, the personal metaphor merely transfers a personal quality, but the personification gives an action or function.