Zen is a stream of Buddhist teaching that looks for awakening in meditation and in direct perception, not in sermons.
Within the International Nath Order this is a neighboring path, not the house. Shri Gurudev Mahendranath wrote Zen’s Zenith of Zest and placed Zen beside Yoga-Vidya. He also used satori as a cousin of Pratibha. The INO aim remains Awakening as union of macrocosm and microcosm. This page names the neighbor. The essay is the reading.