4 ideas
Each Ifá verse tells how a named past client, often a mythic figure, consulted a diviner, was told to sacrifice, and either complied and prospered or refused and suffered. The diviner matches the present client's situation to that earlier case and delivers the verdict by analogy. Advice arrives as case law, not abstract rule: the client is told they are in the position someone was in before, and shown how it turned out.
In the verses, the prescribed offering (ebo) is the decisive variable separating good outcomes from bad. The diagnosis only names a possible future, and the client's act of sacrifice or refusal determines which future arrives.
Many verses set the client who performs the sacrifice beside one who mocks or neglects it, and show the consequences of each. Placing the two side by side turns a single prescription into a controlled comparison, so the listener sees compliance and defiance play out from the same starting point. The warning persuades through a visible counterfactual rather than through the diviner's authority.
Ifá organizes its wisdom under sixteen principal odu, each linked to a specific cast pattern and each holding a body of memorized verses. A random mechanical cast selects which odu speaks, and the diviner's expertise lies in recalling and interpreting the matching verses. This splits the work in two: chance picks the relevant text, and trained memory and judgment apply it to the client.