The reason Martial Saints are called 'Saints' is due to their extraordinary origin rooted in spiritual power.
Besides the spiritual power flowing through their bodies, most of it is concentrated in the five organs. With each breakthrough to a new realm, the quality and quantity of spiritual power both double, with the addition of a new type of Five Elements Qi, thus making the might of the spiritual power even stronger.
Ning Qi's thoughts shifted, and instantly, the light of metal, wood, water, and fire flickered continuously at his fingertips.
And that's not all.
This is merely the most basic.
Based on the Five Elements Qi, it can evolve into other powerful forces. For example, Thunderous Power and Wind Power originate from Wood Qi, while White Cloud Power and Ice Power come from Water Qi.
