Reality never has the pretense of objectivity in "Lain". Acceptations of the term are battling throughout the series, such as the "natural" reality, defined through normal dialogue between individuals; the material reality; and the tyrannic reality, enforced by one person onto the minds of others. A key debate to all interpretations of the series is to decide whether matter flows from thought, or the opposite. The production staff carefully avoided "the so-called God's Eye Viewpoint" to make clear the "limited field of vision" of the world of "Lain".