The Good
Human brains self assemble along with the rest of the body, its organs, flesh, connective tissue, nerves, muscles and bones respectively. This warm wet living system of cells comprised of more than 125 chemical elements from Dmitri Mendeleev's Periodic Table of Elements.
The Interesting
If you thought elements were small, the subatomic quarks and gluons, its goes much deeper, as do both classical chemistry and physics, in what is known as QED or quantum-electrodynamics.
The Fascinating
Your mind is not your brain, and many posit with evidence that your mind an energetic 4th dimensional entity YOU, that's entangled with your 3rd dimensional biochemical brain, akin to the way a human driver operating a car controls the car, YOU as your MIND control your BRAIN & thus Body, because the brain is the master control organ of the human body.
The Biblical
Take captive all your thoughts unto obedience unto God our Lord and father of Jesus Christ and the Holy Spirit, who together as One Supreme King Above All Kings, Lord above all Lords, reigns supreme in all realms of existence, noting we live in the world or a realm known as reality, but there are higher realms such as the heavenly realms where only energy encoded with information exists, nothing temporal, material or what we call macromolecular condensed energy matter, elements are made of energy, in fact all things are made of energy, and energy is never created or destroyed, energy only changes forms.
The Bad
Aging, chaos, crime, entropy, random accidents, illnesses, from eating UPF, from pollution exposure, from war outcomes, and on and on, people worldwide for all of history have been perfecting the art of killing other people with chemical, biological, explosive, munitions and even nuclear weapons.
The Ugly
Satan, demons, bad spirits, operating in other realms of existence, are not physical bodies, and have incredibly high technology to appear as Space Aliens or in so called Alien Abductions, these demonic forces hate people, hate all human people, and together with Satan their evil leader, they seek by any means to kill, steal from and destroy people, in order that they take souls from God.
The Beautiful
God loves people and wants to save all people for himself, so when their body dies and they face God for final judgment, if they Loved God sincerely, God will say unto them, welcome my beloved child, I have a room waiting for you in my house of many rooms, enjoy the streets of golden light, endless perpetual joy, absence of pain, money or any other problems, up here in my house in my presence there is only absolute satisfaction, your can know anything instantly upon thinking of it, and see anything in any realm in detail which was impossible in your physical body, now you will be able to look at all the realms with the splendorous glorious details they way I been seeing all of it all along, I love you and welcome home.