I also forgot to mention Nick that the Kingdom of God is beyond the boundaries of this known Universe which is implying that man cannot reach it on their own, and that the only way to reach God is through the Son.
Revelation 4:1 - After this I looked, and, behold, a door was opened in heaven: and the first voice which I heard was as it were of a trumpet talking with me; which said, Come up hither, and I will shew thee things which must be hereafter.
When the Son of man returns to Earth, obviously those who see it{ALL} will probably nearly drop dead, Due to the sight which is to behold and to never be seen by mankind again. Seeing the Universe open will be a sight to behold!
God Bless!