Sage is a wonderful plant. Not only is it a great addition to any herb garden and produces lovely lavender flowers, but its smooth yet pungent aroma is a great addition to cuisine and beverages alike. When steeped it produces a great herbal tea with body, flavor and a whole host of health benefits. Not only is it rich in antioxidants, but it also helps with normalizing cholesterol, relieving cramps and digestive troubles, and studies strongly suggest it heightens brain function.
Or you could just drink it because it's tasty. Up to you.