The title is old Latin and encapsulates both artists’ works’ mysticism. Arbor means tree. Additionally forests and plant life have held an integral role with humanity where dendrology has featured in myths dating back civilizations and recurring in various liturgical legends and myths. Contemporary epistemology of trees manifested in Jungian psychoanalytical practice. Furthermore anthropological discourse of trees and their mysticism have been a symbol for wellbeing which is the playground for artists Griessel and Steyn. Oneiric means dreams. Although not physical particles, dreams of parallel universes have had enormous effects on physical realities. Dreams of saints and martyrs have transformed the world positively. Adversely darker dreams of dictators have had negative effects for countless souls.