Faith is the key that opens the door to Heaven. The Bible says the devil believes in God, so mere intellectual assent is not saving faith. Mere temporal faith, that is, trusting God for temporary crises such as financial, family, or physical needs. Saving faith is trusting in Jesus Christ alone for salvation. It means resting upon Christ alone and what He has done rather than upon what you or I have done to get us into Heaven.
Faith is like the hand of a beggar receiving the gift of a King.
We don't deserve the gift of eternal life. But we can have it, if we will receive it by faith. You have just read the greatest story ever told about the greatest offer ever made by the greatest person who ever lived - Jesus Christ. It means, first of all, that you transfer your trust from what you have been doing to what Christ has done for you on the cross. It means, next, that you receive the resurrected, living Christ into your life as Savior.