Is this the Only Universe?
Theoretical physicists use their GOD given minds to speculate about multiple dimensions, the segment of the universe humans can detect, multiverses and whether this current universe is just one of an infinite succession of universes.
I believe anything humans can conceive is possible with GOD but, only in a way consistent with GOD’s characteristics. What do I mean? I do not believe GOD created an evil universe for example.
I do believe if GOD created other intelligent beings that GOD has provided them with guidance and maybe even Jesus and The Holy Spirit as well.
Our brains are an exquisite biological organ
Our brains are an exquisite biological organ existing squarely in the physical reality that we are part of; the spiritual aspect of us exists in the spiritual realm. Our soul is the essence of who we are and is a bridge between here and now and a timeless spiritual realm where we as Christians expect to exist when our mortal being succumbs to death. Not ever having consciously connected to the spiritual realm I surmise it is our consciousness that traverses the gap, with out soul defining who we are (or will be then) as we enjoy Heaven. We humans are immersed in a reality of beginnings, existence and endings: we find it difficult to understand eternity in a meaningful way. I am sure when we are with The Lord all our questions will be answered . . . in the meanwhile here are some clues from The Word of GOD:
Not all is visible to humans
Colossians 1:16 ESV
For by him all things were created, in heaven and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things were created through him and for him.
Jesus gave a glimpse of another realm to Peter, James and John
Matthew 17:1-9 ESV / 5 helpful votes
And after six days Jesus took with him Peter and James, and John his brother, and led them up a high mountain by themselves. And he was transfigured before them, and his face shone like the sun, and his clothes became white as light. And behold, there appeared to them Moses and Elijah, talking with him. And Peter said to Jesus, “Lord, it is good that we are here. If you wish, I will make three tents here, one for you and one for Moses and one for Elijah.” He was still speaking when, behold, a bright cloud overshadowed them, and a voice from the cloud said, “This is my beloved Son, with whom I am well pleased; listen to him.” …
We are blind to some cosmic things
Ephesians 6:12 ESV
For we do not wrestle against flesh and blood, but against the rulers, against the authorities, against the cosmic powers over this present darkness, against the spiritual forces of evil in the heavenly places.
Believers will receive a new body
1 Corinthians 15:51-55 ESV / 2 helpful votes
Behold! I tell you a mystery. We shall not all sleep, but we shall all be changed, in a moment, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised imperishable, and we shall be changed. For this perishable body must put on the imperishable, and this mortal body must put on immortality. When the perishable puts on the imperishable, and the mortal puts on immortality, then shall come to pass the saying that is written: “Death is swallowed up in victory.” “O death, where is your victory? O death, where is your sting?”
And a new Earth
2 Peter 3:13 ESV
But according to his promise we are waiting for new heavens and a new earth in which righteousness dwells.
Old Testament hint of another realm
Ezekiel 10:1-22 ESV
Then I looked, and behold, on the expanse that was over the heads of the cherubim there appeared above them something like a sapphire, in appearance like a throne. And he said to the man clothed in linen, “Go in among the whirling wheels underneath the cherubim. Fill your hands with burning coals from between the cherubim, and scatter them over the city.” And he went in before my eyes. Now the cherubim were standing on the south side of the house, when the man went in, and a cloud filled the inner court. And the glory of the Lord went up from the cherub to the threshold of the house, and the house was filled with the cloud, and the court was filled with the brightness of the glory of the Lord. And the sound of the wings of the cherubim was heard as far as the outer court, like the voice of God Almighty when he speaks. …
Use of ESV Bible verses: https://www.crossway.org/support/esv-bible-permissions/