Now available on Amazon.com! Our Spiritual Compass by Paul V. Zylstra (5 out of 5 Stars - 1 Customer Review) Price: $19.95 Rounding out its thesis with examples from history and etymology, Paul V. Zylstra's Our Spiritual Compass: The Conscience and Morality describes the immaterial parts of man in general and the conscience in detail … Continue reading This Week’s Amazon Featured Book of the Week is Our Spiritual Compass by Paul V. Zylstra