the concept that all living creatures are born under the curse of death is intriguing. and that we must reconcile back to truth God in order to live forever.
It is true, according to the Bible. Humans were created to live forever in paradise conditions here on earth. The only way to keep living in their mortal state was to obey one reasonable command of the Creator. It was not a difficult request.
There was also the "tree of life" in the garden, (Genesis 2:9) which indicates that it had certain properties that would impart everlasting life to those partaking of it. (Genesis 3:22) Had the humans continued to obey, they would have had free access to the fruit or leaves of this tree. But once they disobeyed, access to this tree was denied. The penalty of death was unavoidable. Not just physical death, but spiritual death as well, which resulted in alienation from God. A reconciliation was needed and God made the way for Adam's children to get back what Adam lost for them.
that this existence has no spirit, and we must cease to exist, or turn from our sinful nature that we are born under. but is it real?
We are mortal beings just like the animals, but God made us quite different in that he created us in his own image. It is a natural cycle of life and death for the animals, but death was not programmed into humans. We alone were given the capacity and the will to live forever. We also have a moral capacity, not seen in animals.
When Adam brought sin and death on the human race, he made us just like the animals, as Solomon wrote.....
"I also said in my heart about the sons of men that the true God will test them and show them that they are like animals, 19 for there is an outcome for humans and an outcome for animals; they all have the same outcome. As the one dies, so the other dies; and they all have but one spirit. So man has no superiority over animals, for everything is futile. 20 All are going to the same place. They all come from the dust, and they all are returning to the dust." (Ecclesiastes 3:18-20)
There is no immortal part of man that departs from the body at death. The soul dies (Ezekiel 18:4) When we die, we sleep in death, and return to the dust like Adam. But our life can be returned to us by means of a resurrection, just like Jesus' raised his friend Lazarus.
We are designed a certain way and the other creatures on this earth were designed in a specific way as well.....All were intended to live in harmony with their environment, created especially for them. Nothing is the product of blind chance.
Life is not a fortunate accident.