1000 years here on earth is only 1 day (2 Peter 3:8) in the eyes of the LORD. Also according to Hindu scriptures one day of Bhramha is equal to many 1000 years of humanity.
Also according to science time slows down as we go near a black hole.
So can we corelate these two things and say that God lives near a blackhole?

I think it's to say that God is beyond our understanding
when Samson's dad (in the Old Testament) is visited by an angel, he asks the angel for his name, an the angel replies telling him that he would not even be able to understand his name so wouldn't you say that the whereabouts of Heaven is gonna be so far from our understanding,

best not to dwell on it