Only a sufficiently powerful soul can cultivate the Soul Foundation Skill; this is a prerequisite for perceptual abilities.
Ordinary Martial Artists can also cultivate the Soul Foundation Skill at a certain level. However, since they haven't awakened the divine potential of their five viscera during the second martial realm, it's like having fertile land but no seeds.
Thus, the benefits of the Soul Foundation Skill are minimal for them. If they have the means, practicing it can help clear the mind and eliminate distracting thoughts.
Of course, nothing is absolute. A rare, fortuitous encounter might offer a chance to overcome this limitation and grant special perceptual abilities, but the probability is minuscule and impossible to replicate.
An ordinary Martial Artist's conventional perception depends on two things: the natural awareness of the world's ambient energy that comes with realm advancement, and the instinct for danger honed through years of life-and-death combat.
