A small act can most definitely qualify as rising above and standing in the midst of a storm. I think the quote is really saying that warriors are worthless without courage, IMHO. And small acts can absolutely be courageous. People have been programmed to believe that unless their actions literally move mountains, it's not worth it. Which is absolutely false. God tends to work through humble acts of kindness or love. And those actions can have profound reach. Truly amazing is our God!