"Soul Fire" is a Two Stars Soul Secret Technique, while "Soul Spike" and "Soul Radiance" are only One Star Soul Secret Techniques. Soul Secret Techniques, unlike cultivation techniques and martial skills, are classified into Nine Stars based on the power they exhibit, with One Star being the weakest and Nine Stars being the strongest.
In the continent, Five Stars Soul Secret Techniques are very rare, and Six Stars Soul Secret Techniques are almost extinct.
Along the way, Chu Ming multitasked—traveling, reading "Soul Explanation", and cultivating Soul Secret Techniques simultaneously.
The soul is the essence of a martial artist. If any martial artist loses their soul, they will become lifeless. Even a Life and Death Realm King, who can perform Blood Rebirth, would find it extremely difficult to recover if their soul is damaged.
Moreover, the soul is also the most fragile part of a martial artist, thus, martial artists place great importance on their soul.
