Sentence:  This Sunday those attending the second session will hear a lecture by Kern on the world situation ; a review of the philosophy of Communist leaders by Ted Slack , another real estate agent who became interested as a philosophy major at the University of Miami ; and talks on how their Christian faith can <WSD>guide</WSD> them in learning about and fighting Communism during high school and college days , by Ted Place , director of Greater Miami Youth for Christ , and Jon Braun , director of Campus Crusade for Christ . 
Meaning of the word marked with <WSD> tags:  direct the course; determine the direction of travelling