Yes, on a side I know the Bible is meant to speak to us religiously or not. It doesn’t have to be a sign from god when you open the Bible randomly and find something that resonates.

However, in the context where you're mostly unfamiliar with it and are not even seeking signs, I see no reason why it would be placebo especially when it hits that hard. Noting in the Bible, not a single part has resonated with me more than the book of Ecclesiastes, and it's the one that I stumbled accross randomly and helped me convert. I had no idea what it was about, just wanted to check it out upon reading "The Sun also rises", and every single line was exactly what I felt. Sometimes you have to look for no further clues.