Self has expanded Awareness of Abstract Truths.
The Psyche is aware of the Good, Bad and Ugly realities of the Experiences.
Persona and Personality are aware of the Roles we have chosen and the skills we have acquired, to serve the Purpose of Life.
Reliance on Truth (by Inward Sensing) helps to overcome / stay above the traits of Conceit, Distortions and Deceptions to face and live in this World, unblemished.
The attitude of deception and distortion weakens the Self system.
The devious ways adopted create and re-inforce Blocking, Deflecting, Inflicting and Afflicting. These cause Splits in our Cognitive matrix.
Asathya (Untruth) is first a Betrayal of Self, then a deception to others.