Satori first arose as a quest to find GOD but later became synonymous with enlightenment. Wisdom in Zen Buddhism is facilitated by the use of Koans during meditation. Koans are paradoxical statements or parables or questions that need not have a logical answer. The idea is for the student to abandon any preconceived ideas and instead rely on intuitive responses from meditating about the question, paradox or parable to achieve an enlightened response.
Although Buddhism is correctly regarded as non theistic nevertheless the quest for enlightenment might also be regarded as seeking to experience the unknowable as a quest to find GOD.
In fact the conclusion that the absolute truth cannot be known remains true for the followers of all of the world’s great religions. The fact they are wrapped up in rational theology reveals a particular truth as seen from that perspective.
All religions express a particular truth, but from different perspectives to achieve a greater good in a universal collective consciousness. Understanding this perspective is essential for the future of religion.