A Creator, God, is the most logical answer to how existence came about.
To believe that something came from nothing is completely against every human experience. But atheists accept it because it allows them to not be accountable to the only One who could create the universe.
No one has proven that God is imaginary, because they can't. People can state it, but that doesn't make it true.
God reveals himself in many ways, and only those who search for him honestly find him.
Faith in God is not a possession of all people, but it can lead to a deep-seated personal happiness.
People believe in God because God makes himself known through his works. Also, because just like a house is constructed by someone, the one who constructed all things is God. Thirdly, a real, ultimate Creator, by definition, has to be uncreated, so there must be only one.
The God of the Bible recommends himself to be the Creator because of consistent fulfillment of prophecy. Secondly, every few months a discovery in science or archeology is made that corroborates some aspect of the Bible's account. Third, the morality of the Bible's commands about how to live our lives works for everyone - respect for life, respect for property, respect for reproductive powers, respect for truth, and most of all, to put God's service in the center of our lives.
Just because a Creator of the universe cannot be seen does not deny his existence, because we don't see gravity, or the wind, or electricity, but we know that they exist, because we see their effects. Similarly, when we see lives radically changing for the better because of a new found faith in a Creator, we are seeing the effects of God in their lives. I have seen this many, many times, and no atheist can deny that this happens.
The truth is that there is no proof that there is no intelligent Creator - and the tremendous complexity and interconnectedness of our existence strongly indicate that one does. Atheists generally do not want to talk about beginnings or of finding final answers to important questions, which is the whole point of it all. Who am I? What am I? Where did I come from? Where am I going? Is this life all there is? We could give our opinion about these questions, but opinions are not answers.
It is true that most great scientists in history believed that the earth was created.
To insist that scientific methodology was conceived only in the last 300 years is unreasonable, especially in view of our knowledge of ancient cultures and their accomplishments - they were not all ignorant deluded illiterate goat herders.
Isaac Newton demonstrated that with every action, there is an equal and opposite reaction. It is logical to conclude that the tremendous complexity of matter, energy, forces and the laws that govern them must have a cause of equal complexity.
It is also true that the modern scientist accepts that at some point in the distant past, the universe began to exist. The red shift of the stars confirms this.
This fact brings Kalam's Cosmological Argument into play. (Google it)
It is also true that an alternate cause of the universe is intelligent rather than a mindless force.
The fine tuning mathematical constants that are evident throughout the universe reveal a common intelligent mind producing it all.
The DNA (or RNA) molecule on earth is found to be amazingly complex, and exists in even the tiniest kinds of living things.
The question then is, is the ultimate source of that existence someTHING or someONE -- that is, a mindless random source, or an intelligent one?
Because information has never resulted from randomness, the intelligent answer is superior.
Therefore, there exists an intelligent, uncreated Creator.