I'm having problem figuring out the idea or meaning of a sentence while reading manga.
The context is that a character A told someone (character B) a big lie, and influenced by that lie, B started to act in favor of character A, without even realizing it. The liar states now that character B is under his "spell" (魔法). There's no magic involved, just an expression.
After that, character A says:
I'm able to understand each word individually but not as a whole phrase. What is the main idea of the sentence?