YOU SAID:
Standing at the castle walls that stood before me
INTO JAPANESE
目の前に立っていた城壁に立って
BACK INTO ENGLISH
Standing on the wall that stood in front of me
INTO JAPANESE
目の前の壁に立って
BACK INTO ENGLISH
Standing on the wall in front of you
INTO JAPANESE
あなたの前の壁に立っている
BACK INTO ENGLISH
Standing on the wall in front of you
That didn't even make that much sense in English.