Book excerpt: The Keys to the Kingdom of Heaven by Jeffrey Dykema Did you know that the keys to the kingdom of heaven are found in the Holy Bible? In The Keys to the Kingdom of Heaven, author Jeffrey Dykema identifies the seven keys to the kingdom of heaven and explains how having these keys is necessary to grow spiritually. Regardless of whether you are a Christian, a practitioner of another religion or someone who is curious about spiritual growth, this book will both inspire and challenge you to grow.