Why do you consider this a forbidden question? Surely it is one most people ask and yet we find we have no answer for it.
In addition to your question there is the fact that the Bible says God is Spirit and that He is everywhere. There is no place that His presence is not. I think this is huge, yet I can not explain it nor do I claim to understand, yet I believe in Him and that He has the power to destroy or redeem me. I am told;
So then faith cometh by hearing, and hearing by the word of God.
I know this verse drives many to distraction, because to them it does not explain anything, but to me it is key to what I believe. The more I read the Bible the more I am convinced that it is His Truth.
God is a Spirit: and they that worship him must worship him in spirit and in truth.
7-Whither shall I go from thy spirit? or whither shall I flee from thy presence?
8-If I ascend up into heaven, thou art there: if I make my bed in hell, behold, thou art there.
When He calls me up to be with Him in heaven I am sure I shall understand much more than I do now. However having said that I am equally sure that there will be an eternity of learning, because God's knowledge is without end and I can never equal it. Additionally reaching a point in this life, or the next, when I can no longer learn and be more of what He would have me become would indeed be dull.
Ye lust, and have not: ye kill, and desire to have, and cannot obtain: ye fight and war, yet ye have not, because ye ask not.
Ask, but ask the correct One! He alone has your answers.
5-Trust in the LORD with all thine heart; and lean not unto thine own understanding.
6-In all thy ways acknowledge him, and he shall direct thy paths.
Come now, and let us reason together, saith the LORD: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.
Reason together implies discussion. Asking the hard questions brings on a discussion.