In its “practical directions” for reading the Catechism the authors have placed a brief instruction:
This catechism is conceived as an organic presentation of the Catholic faith in its entirety. It should be seen therefore as a unified whole. Numerous cross-references in the margin of the text (numbers found at the end of a sentence referring to other paragraphs that deal with the same theme), as well as the analytical index at the end of the volume, allow the reader to view each theme in its relationship with the entirety of the faith.
What is the meaning of such a direction? What would such a practice look like? How should it be undertaken and what is its value?