Eddic poetry presents even gods as seekers: Óðinn questions seeresses, the dead, and keepers of knowledge. Foreknowledge does not necessarily prevent foretold disaster; it often reveals the limits of divine power.
Sagas tell of dreams, omens, and travelling seeresses. Such scenes structure narratives and judge characters. They may preserve contemporary ideas but are not verbatim records of Viking-Age sessions.
Concepts such as urðr and the norns connect individual lives to a larger order. Sources yield no single philosophy but images of what has become, obligation, inheritance, and constrained agency.
No complete historical oracle method survives. In particular, drawing individual runes with fixed keyword meanings is not attested as a standard Viking-Age practice.