When we talk, we don't use punctuation marks. Just by saying it, it becomes clear whether we are formulating a statement or a question. This is different with a text. There, punctuation marks are used to understand the text correctly, because neither pauses in speech nor pitch are represented. I got stuck with the question mark. It actually looks - with a little imagination - like a half - and therefore open - heart. That goes very well with the question. A question expresses dependence in a certain sense: I don't know everything, I have to ask, someone has to help me with an answer. That helps against pride, makes you open and also vulnerable. In the Bible, at crucial points, there are also important questions that are asked of us - and these with an open heart for relationship. So God asks at the very beginning: Man, where are you? Or Jesus asks: Do you love me? Have you already found answers to these two questions?
I wish you an extraordinary day!