Excuse me, could you kindly elaborate on the phrase "mapo tofu" in English, please? I'm curious to understand the direct translation and any cultural nuances or connotations associated with this dish. Is it a type of tofu preparation that's particularly renowned or perhaps a regional specialty? Additionally, could you shed some light on its primary ingredients, cooking method, and perhaps any notable flavors or characteristics that distinguish it from other tofu dishes? Thank you in advance for your insights.