The Existential triad
When we perceive a body in motion independent of external impulses and together when we witness its organic growth over time, we then acknowledge the miracle of life in the form of an idea. The body, the idea of awareness i.e. the consciousness and the autonomous energy as the cause of motion often referred to as the soul - confirms existence. Thus, the body, consciousness and soul constitute the existential triad, the absence of any component of this triad is enough to cast reasonable doubt over existence.