Something that is passionate packs emotion, and possibly romantic emotion. A passionate plea will tug on your heartstrings and a passionate kiss will sweep you off your feet. If you want to stay unmoved, stay away from the passionate.
If you're passionate about soccer, you can't get enough of it — you've got soccer pennants plastered on your walls, your TV is permanently tuned to the soccer channel, and you probably wear soccer jerseys under your button-down shirt. Passion can also come from intense feelings of love for a person. Be careful — you could be swept up in "a passionate embrace."