Superficial truths are what mundane minds viewing the superficial essential natures of conventional knowable phenomena consider to be true. Deepest truths are what non-deceptive minds viewing the deepest essential natures of conventional objects consider to be true. To the mental activity of all those who are not yet enlightened, superficial objects conceal their deepest truth. This is because superficial objects appear to them to be established by self-establishing natures, whereas the deepest truth is that there are no such things as self-establishing natures. The two truths share the same essential nature of both being devoid of self-established existence.