Metaphors in and out Buddhism

One of the questions / answers recently posted here was about "storing" mental states for later. Of course this isn't Buddhist, in the sense that it does not literally describe a selfless person. But it could be metaphorical, couldn't it? The idea that the mind is ***like*** a computer, even though there are dis-analogous elements to that term, there are overlaps - like the way that persons have access to the past in memory, **as if** they were "stored". So my question is: are any of the Buddhas actual teachings only metaphorical?