Only faith can guarantee the blessings that we hope for, or prove the existence of realities that are unseen. Hebrews 11:1 (NJB)
Faith is basically believing in something without valid evidence of its existence. It's an inner conviction based on your "gut feeling" that there is such a being called God, a creator of all things great and small. That is all good and well to believe, but at the same time all of it is nothing more than subjective.
Anyone who has been in love or infatuated can tell you that feelings are not a valid criteria upon which to make important decisions or judgments. Feelings are deceptive and at the same time blinding. Decisions based on emotions almost always tend to blind ones reason and cloud ones judgment. Logic demands objective evidence and an understanding before its states anything as fact.
I have always said that faith and reason are, have, and always will be irreconcilable due to the different views and requirements of both ideologies. Faith requires no evidence, it accepts what it has been taught (indoctrination) and what is written as divine. Reason analyzes the origin and history of the so called holy writ, and then judges it by its historical context, its contents, its historical accuracy, etc.
Once you set aside your fear and reverence for the bible and study it as you would any other work of literature, you will see the disparity in its contents. And you will realize that its claims to being divinely inspired are just that. Nothing could be substantiated as facts outside of the biblical texts themselves. There are many questions as to the veracity of the stories contained therein.
As a result of this, theologians are constantly hard at work to try to explicate the various and obvious flaws in the scriptures by coming up with exegesis. Through exegesis everything that is inconsistent with fact can then be reinterpreted in another sense such as allegory, or as a parable to try to take away from the fact that it is a disparity or contradiction.
Christians rejoice every time a so called archeological discovery is made that they believe serves as evidence of the truth of their beliefs (Shroud of Turin, Jesus family tomb, Noah's ark,etc.). Only to find out later on that they have been had, that what they believed were true artifacts turned out to be frauds. This demonstrates the power of indoctrination, it is so strong that no matter what evidence is shown in opposition of it it will never suffice.
Christians seek meaning in life, a reason for being. They refuse to accept that like all other life forms in this world and possibly elsewhere, we are born, we live, and we die. Their desire to live forever is met and satisfied with the false beliefs that they will survive death and live forever in a perfect place where there will no longer be pain nor sorrow. These beliefs are not rooted in fact, but faith and faith based on the bibles definition is nothing more than a delusion.