Tell us why you believe
I think it's the most sensible, complete account of reality.
and why your belief is important to you
Because I appreciate a sensible, complete account of reality. Heaven is pretty nice too.
What is it that makes your belief so strong?
Probably that sensibility and completeness thing, again.
Questions for you:
where were you born and raised?
Were your parents christians?
Right now, I'm taking a guess you were born in the USA or another western country. In which case, you would have grown up in a culture that was predominantly christian. Because of this, I'm guessing your parents were also christians. Am I right so far? If yes, then doesn't it strikes you that the main reason why you are a christian is because it's what you grew up with? Whenever by culture, by parents, or both.
Have you ever stopped to think that if you were born in a different time and place, you would not have been a christian? You would have a different religion if you were born in China in 12BC, or in South America in 600AD. Even today, you would have a different religion if you were born in India, or in Saudi Arabia or another place where christianity
isn't the dominate religion. Does it ever moves you that in order to be a christian, you have to be born at just the right place at the right time?