Christian belief is laid on a very solid foundation. First of all we believe that God has revealed information, to the prophets who wrote the Bible, to point us in the right direction. Our beliefs are not just based on human research or discovery. In other areas of life when we want to learn about something outside of our sphere of experience we seek information from a trustworthy source. So if you are researching space travel for the first time you would go to NASA or some other space agency to ask them questions. It is wise practice to go a reliable source.
So, if you are serious about discovering truth about God and the spiritual world then you need to go to the most reliable source, the book of God, the Bible. It is a trustworthy source. Read it, check it's sources, speak to those who believe it, look at it's accuracy in every sphere it touches. There can only be one answer to the question of the origin of a book that was written over a period of one thousand five hundred years by forty different authors, many of whom did not even know each other and yet, amazingly, present the same message and principles from the beginning to the end. The Bible has been proven to be God's message to mankind. The evidence that the Bible we have today is the Bible that was written originally can be checked out from archaeology, history, geography and many other disciplines. To check this out you might want to read some of Lee Strobel's books, he makes an excellent case for the veracity of the bible. In addition read John Blanchard, John Lennox, Erwin W. Lutzer and Josh McDowell to name a few. This is not a myth but if you treat the Bible as one you will miss out on the most vital truths known to humanity.
Secondly check the facts concerning Jesus Christ. There are over three hundred signposts (biblical predictions/prophecies) which point to him. The chances of them all being fulfilled precisely in the life of one person, at the right time, in the right place are mindblowing odds apart from this fact - God planned it and implemented His plan in a person - His Son, Jesus Christ. The Bible predicts the mode of his conception, the place of his birth, his exile into Egypt, the slaughtering of the innocents, the gifts from the magi, the time of his death, the method of his execution and His resurrection and lots more. Co-incidence, I don't think so!
Finally look at the detailed predictions about the way that Jesus would die. Psalm 22 and Isaiah 53 describe the horrific death of God's Son a cross. Death by crucifixion was unknown when Psalm 22 was written about 1000 years before the death of Jesus but God knew that was the way that His Son would die.
In closing please listen again to the words of the angels who announced the birth of the Lord Jesus 'For unto you is born this day in the city of David a Saviour, which is Christ the Lord'. Is he your Saviour? He died 'for our sins'. He suffered 'the just for the unjust that he might bring us to God'.
Will you rest by faith on what the Lord Jesus did to save your soul?