I am definitely an Atheist
If you are an Atheist through and through, you basically sign up to the following beliefs:
You came from nowhere and you have no cause. There is no reason for your existence and no greater meaning to your life other than the continued survival of your species. Your death is certain and afterwards there will be nothingness. You have no foundation of hope and no guarantees for the future. Love is nothing more than neurochemistry. Joy is merely an evolutionary step further on from a dog wagging his tail.
Essentially, as Richard Dawkins said "The Universe is bleak, cold and empty".
In fact, "everything is meaningless under the sun". This is the conclusion that a wise teacher came to about 3,000 years ago. His thoughts are recorded in the book of Ecclesiastes within the Bible.
The following is taken from chapter 1, verse 2 to 11,
"Meaningless! Meaningless!" says the Teacher. "Utterly meaningless! Everything is meaningless." What does man gain from all his labour at which he toils under the sun? Generations come and generations go, but the earth remains forever. The sun rises and the sun sets and hurries back to where it rises. The wind blows to the south and turns to the north; round and round it goes, ever returning on its course. All streams flow into the sea, yet the sea is never full. To the place the streams come from, there they return again. All things are wearisome, more than one can say. The eye never has enough of seeing, nor the ear its fill of hearing. What has been will be again, what has been done will be done again; there is nothing new under the sun. Is there anything of which one can say, "Look! This is something new"? It was here already, long ago; it was here before our time. There is no remembrance of men of old, and even those who are yet to come will not be remembered by those who follow."
In fact, the first 8 chapters of Ecclesiastes give a good description of how meaningless life is without God.
Jesus offers you hope and a future. He claimed to be God, consider the options,