I'll leave you without a translation, let's just say this is the symbol for conflicting goals, e.g. I want to have a slim waistline, but I also want another piece of chocolate at the same time.
Do you see the spot in the lower left corner? I'm dragging around my notebook everywhere, and today I dropped it on the pavement. It was raining, and now it has got that water spot. I didn't dare checking so far whether the spot touches every page of the notebook.