126. What does it mean to say that the Church is the "Body of Christ"?
127. What does it mean to say that the Church is the "Bride of Christ"?
128. What does it mean to say that the Church is the "Temple of the Holy Spirit"?

129. Why can there be only one Church?

130. Are non-Catholic Christians our sisters and brothers also?

131. What must we do for the unity of Christians?

132. Why is the Church holy?
133. Why is the Church called catholic?
134. Who belongs to the Catholic Church?