Why does the existence of something make more sense than its non-existence? Or, why does there tend to be something rather than nothing?
Why "this" instead of "that"? Why is there only existence around us and not non-existence?
Yet why can we think otherwise (of non-existence) even though it is not present anywhere (based on our logical reasoning)? Because our initial thought stems from reality, and when we contemplate the opposite, it's based on the structure of that initial thought itself, leading us to assume it must exist, even though thoughts about its opposite (non-existence) are formed from the framework of existence. So, even though it may seem like we can think of non-existence, the thought is not proportionate.
And this disproportion does not indicate non-existence; it merely accentuates the distinct characteristics of existence without turning into non-being.
Because we realize "here," not directing towards there. Because we are in this place (existence), not in that. Because we are in this state, not in that state.
Because wherever we are, it's always within existence. Because whatever comparisons we make, they still fall within the realm of existence.