Observing the world through Buddha Dhamma, paradoxes are everywhere. This universality has its origin in the fundamental doctrine of Conditioned Origination.
As Ven. Asaji told Ven. Sariputta on their first meeting:
“Of those phenomena that arise from a cause, the Tathāgata has told the cause, and also their cessation. This is the doctrine of the Great Contemplative.” — Mahāvagga 1.23, the Vinaya Piṭaka
Everything arises from the convergence of a multitude of conditions, factors, and causes. Some conditions are proximate; some are distant. Some factors are aligned; some are at cross purposes, in opposition. Some causes are human; some are natural. Some are powerful; some are weak. Nevertheless, each factor exerts a force—pulling or pushing—constantly shifting as new conditions emerge and old ones drop off. Just like physical forces acting on an object, at any given moment there is a temporary equilibrium manifested by the net resultant force. All is impermanent (anicca).
These states appear as paradoxes: birth and death, arrival and departure, day and night, attractive and repulsive, beauty and beast, young and old, eternal and evanescent, love and hate, friends and foes, war and peace. The paradoxical states are transient.
Since everything is changing moment by moment, fleeting, such states are unstable, unreliable, fragile—shifting from order to disorder (as described in physics by entropy)—prone to breakdown and breakup.
Impermanence can be upsetting and traumatic, resulting in human sorrow, confusion, anxiety, surprise, shock, paranoia, delusion, disappointment, grief, loss, despair, helplessness, hopelessness, pain, and suffering (dukkha).
Dependent origination means there is no First Cause, no Creator God, no omnipotence—nothing that could control or dictate everything. No one is in total control of oneself. Yet everyone imagines the contrary. There is no inherent, unchanging Self-Nature; no such thing as a “Self.” (anattā).
Such is the universe—full of paradoxes (less accurately but commonly called contradictions). This is an inevitable truth, a “theorem” derived from the fundamental “axiom” of Conditioned Origination.