Narrow Gate, a Bridge That Fades, and the Kingdom of God

Jesus invited His true followers to join Him in the kingdom of heaven, and He said that it is already active here on this earth and that it will always exist in our future as the house of His heavenly Father.How can this be accomplished by following Him?What are the trials we must endure in this world to live already in the kingdom, if that is possible?Our whole world is undoubtedly under the cont...