Lessons learned on the Mission Field draws from varied experiences of Carl's years in the army and the mission field to expose hindrances to the relationship between humans and God. These lessons illustrate how to renew an intimate relationship with God, Jesus, and the Holy Spirit, which is of ultimate concern to the many that may have slipped or fallen by the wayside. The purpose of the first book, A Challenge to Live, was to bring people back to the Lord. The need is greater, as we are approaching catastrophic times in which only the Father, Jesus, and the Holy Spirit can provide what is needed. His security, safety, sustenance, guidance, joy, peace, and harmony are and will continue to be desperately needed. We must reach him now while he is knocking at our door.