I'm writing a manuscript with a colleague and in the book they want to include a sentence mentioning that we feel blessed (without any further context whatsoever, so "God" wouldn't be mentioned). They want to do this in order to personally thank god, but as a non-religious person I'd only be fine including "blessed" if I could interpret it through its secular definition (i.e., just being happy or fortunate). This is just so I can put myself at ease, since I feel that thanking god would "tarnish" my book since I'm not religious and it would go against my views.
Question: If two authors write an ambiguous word in a sentence (where both of the word's meanings would make sense), could they each interpret it in their own way? Or must a word be interpreted in the same manner by both authors? If this affects anything, my co-author thinks I'm religious and that I am interpreting "blessed" in the same way as they are.