There must be a reference point for any graph to make sense. But the ideas of sense, logic don't exist without mind. Whether "here" exists when my "I am" is not, doesn't make sense. The concept of a world, a universe, is absent without the conceiver. It doesn't matter.
We perceive. We give meaning and withhold meaning. All that is (or isn't) is, precisely and only because we perceive it. If there is no perceiver there can be nothing perceived. Moreover, it has no meaning or relevance if I, me, is not "here" to do the perceiving.
Nothing = nothing.
Somehow I am creating all of this mirage. No idea how or what lies beyond me.