It is truly a mystery. The nature of light seems to be both a particle and a wave--wave-particle duality. Attempts to describe it fully as one or the other have failed. This mystery is an illustration of the blessing of Christians. For we embrace a mystery everyday in our faith--the mystery of the Trinity. Fundamental to our faith is One God in Three Persons. Not only is it fundamental to our belief system...to our minds. The Trinity is also fundamental to our fellowship with God...our very salvation.