I Ching reading works through image and text
A text-based I Ching reading usually works from the primary hexagram, changing lines, transformed hexagram, and classical commentary. Its emphasis is situation, timing, virtue, and change.
This is useful for reflection, decision posture, relationship structure, and action timing. It does not always try to identify every actor or event detail.
Six Lines adds Na Jia and role mapping
Six Lines methods attach branches, elements, Six Kin, Self and Other lines, useful gods, empty cycles, and month-day relationships to the six lines. It becomes closer to an event chart.
For a contract, a Six Lines reading may inspect the relevant document line, the Self and Other lines, and how the date supports or weakens them. For relationships, it may read Self/Other, spouse indicators, peach blossom, and changing lines.
Oracle keeps the outputs separate
If the user needs reflective guidance, a text-based I Ching reading may be enough. If the question needs role mapping and event detail, Six Lines is the more appropriate tool.
Oracle separates these layers so a long answer does not hide a weak method. Choosing the wrong tool can make the result sound impressive while reducing accuracy.