Whether the world was born out of nothing or has always existed has been debated for thousands of years. In the past, because all the theoretical logic of mankind had to be within the scope of causality, no matter which country's mythology, they understood the world as being created by different gods, and the god who created the world was created by whom, they could not understand, so they agreed that God could only exist forever.
And this kind of thinking about God as eternal or eternal is actually a logic with the wrong understanding of space by people in the past. No matter which country's mythology, its starting point is the world created by God in space, and as for space itself, because they think it belongs to non-existence, they think that space has always existed.
The opposition of existence is nothingness, and the reason why the ancients believed that the world has always existed was because they could not understand a kind of "nothingness" without time and space, so no matter how they fantasized, their scope would only be narrowly within the scope of their own understanding. Human understanding of space in the interior of the universe did not change until after Einstein's theory of relativity, and even Newton mistakenly understood space as non-existence (nothingness), while Einstein's theory of relativity tells us that space belongs to "existence", but the form of existence does not belong to matter. What connects the position between the celestial bodies is space, otherwise if the space is nothing between the celestial bodies, then the celestial bodies will become independent individuals, and how can the two independent individuals produce mutual forces. That is to say, the so-called existence does not only represent matter.
Modern physics tells us that there are both "mass boundaries" in the universe that belong to the properties of matter and "energy boundaries" without mass, such as light, electricity, and so on. The universe is born in the environment, and so is life, so the birth of life is imitating the form of the universe, which is the purpose of life. The purpose of life is the purpose of the universe, the universe was born from "nothing" and finally returned to "nothing", so the purpose of "nothing" is the cycle of birth and destruction, and the purpose of change of "nothing" is to satisfy the form, so perhaps the nature of the form is change and eternity.
Modern physics has also discovered the so-called "universal gravitational" law, which holds that there must be a gravitational force between two massive substances. Gravity comes from gravity. However, the so-called gravitational force may not come from the object's own, but from the external force squeezing of the object by space. Because everything in the universe is not only derived from the original "singularity", but its location still exists within the "singularity".
As mentioned earlier, space belongs to "existence", and the reason why we feel as if it does not exist is influenced by our own sensory forms and instinctive cognition, just as fish in the deep sea will regard water as "space". In our phenomenal realm, existences such as space and light, which have no substance but exist, are different from objects, and they belong to the same space, that is, in the universe. Objects grow from space, just like a sarcoma grows in our body, and its "gravitational pull" does not come from itself, but from the squeezing of it inside our body. So the planets are not suspended in space, but are squeezed in space.
According to the Theory of the Big Bang, whether it is mass matter or space close to masslessness, they all come from the original "singularity", and with the explosion of the "singularity", the universe was born. The reason why galaxies will have motion may come from the continuous expansion of the universe, so that galaxies are constantly pulled in space. The greater the mass of an object, the stronger its gravitational pull, because the greater the mass of the object, the stronger its possession of space. The so-called black hole may be precisely because of the destruction of a mass, which disappears from space and leads to the rapid return of space. And the form of its destruction is transformed from existence to non-existence, so black holes are a phenomenon, not existence. Because a black hole is only a consequence to us, and its properties are non-existent, it is impossible for us to visualize it. The reason why black holes will even swallow light is not that light is really swallowed by black holes, but that light becomes non-existent when it passes through non-existent space.