Faith is the act of laying down something precious for the sake of a provision, which is not too obvious, from God. Abraham was known for his extraordinary act of faith by almost slaughtering his only son, a gift he desired all his life. For what? Even though Isaac was so precious to Abraham, he believed for God to ask of him to sacrifice his son, then He (God) has a provision that is far better than the required sacrifice. In short, this is an act of faith.
The basis of faith is sacrifice. Our faith is based on the sacrifice Jesus Christ has made on the cross for our sake. All that is required of us is to lay down our lives for this truth. Be prepared, at all times, to lay down something precious for the sake of the wonderful provisions promised by God through Jesus Christ.