With all due respect to SuStel, his suggested parallel with Sum or Hop doesn't hold water, because these verbs are canonically adjectival and so they can't take objects in any case:
I think you misunderstand me. I'm not suggesting that we look at Sum and mimic its grammar. I've given the principle by which I think it works and pointing to Sum to illustrate something similar.
The principle is this: -Daq tells you the location at which the verb occurs, not, in this case, the destination of the action. When we think of coming closer, we tend to think in terms of being the moving entity heading toward the destination. I'm suggesting that we may have that backwards: we should think in terms of being the stationary entity, watching the moving entity coming closer to us.
Let's get away from you and me, as this may skew our perceptions. Let's talk about a ship getting closer to a planet. The moving entity is the ship, so it is the subject of chol. If I say yuQDaq chol Duj, we can interpret that in one of two ways. We can consider yuQDaq to be the destination — a reading I'm rejecting here — or we can consider yuQDaq the place at which chol is occurring. We're at the planet, watching the ship come closer to us. At the planet, the ship comes closer.
The reason I bring up Sum is because it works much the
same way. yuQDaq Sum Duj The ship is near the planet;
At the planet, the ship is nearby. This has nothing to do
with whether either verb can take an object; it's purely about the
locative viewpoint of the sentence. The location of the action is
not with the subject; it's with the locative.
So we can do this with first- and second-person pronouns too. SoHDaq
jIchol I get closer to you. The SoHDaq is not
saying that I'm coming closer, heading to you. It's saying
that from where you are, I'm coming closer. This is where the
canonical use of Sum is useful, because we have SoHDaq
Sum raS, where SoHDaq "throws the orientation away
from the speaker (unmarked, unstated) and to the listener (marked,
stated: "at you, where you are"). From where you are, the
table is nearby. SoHDaq jIchol From where you are,
I come closer.
-- SuStel http://trimboli.name