[@ineffable] It's okay. Let's see if I can explain it a bit better.

From the first post of the OOC: Spirit awareness allows someone to have a high intuition as to the presence of spirits. Spirit strength allows someone to channel their energy into a force, and it does not matter if someone is physically strong. And spirit adaptation allows someone to morph and use their energy for unique purposes like barriers or physical weapons.

Your character is said to have a weakness in spirituality. By definition of this RP's premise, he can't be weak in all three areas of spirituality. He needs to have proficiency in at least one, if not two areas as explained above (strength, adaptation, intuition). 

For example: Your character's physical strength could be used along with spiritual strength. He could use his combat along with spiritual energy to be stronger than most others. If you've seen Naruto it's a little like channeling chakra to one's limb to give an additional boost. But again your character can't go around using normal human combat based strength without applying using spiritual energy too. A normal punch would do nothing to a demon.

Another example: Your character's physical talent could be set aside for another combat skill altogether. Does he have to use his taekwondo? No, it could be just a hobby if say he was more into spiritual intuition or adaptation. Perhaps in a twist, he has no spiritual strength at all, unable to really do anything like he would assume he could normally. Instead he has good adaptation and can be some sort of healer. Or maybe he can create spiderwebs that trap and hinder enemies due to a level of adaption and intuition? 

Does that make sense? If you want your guy to be into using his taekwondo, that's fine, just be sure he's got some spiritual strength behind it. Otherwise I do encourage you (and everyone else!) to be creative with applying spirit energy, 

[@Kassarock] Thanks! That helped. :)

[@FiroIV] Let me know when you've edited~