What you are looking for is harmony and balance in your pairing. Wine on its own tastes different than when it is paired with food. If it is complementary, wine can impart its flavors to a dish, thereby giving the food an added layer, or food can lend its flavors to the wine. If they clash, or if one overpowers the other, the experience will under whelm and disappoint and can sometimes lead to flavors that are not present in either, like an unpleasant metallic taste which can result from high tannin content and oily fish. With the right pairing, wine and food can combine to give your palate great pleasure!