In your article about Being Willing you mentioned or rather suggested that one learn how to be willing. “Learn to Be willing and you’ll truly see what God Can Do.”

My question is how does one learn how to be willing? For example, if one were trying to prove the existence of God but wouldn’t or couln’t accept the myriad proofs because of unwillingness, prejudice or bias, how does one turn that unwillingness to willingness?
 

 (this is a copy of an email request received by David and has been republished here. All personal information has been removed)