Gravy

Why does gravy taste so good? Baked a chicken this weekend. Used Penzey's 4/S Seasoned Salt to flavor the skin, filled the cavity of the chicken with lemons and put on a roasting rack over potatoes. Then I made a gravy after I took out the potatoes with the drippings. S ate the chicken. Loved it. V ate the chicken. Loved it. Both ate their broccoli and I thought it was a successful meal. But why is the gravy my favorite part? Seriously? I'm looking to make Mom's taco pie tomorrow night for dinner. Hope to get to the butcher to get some items for my freezer and fridge. Hoping I can prep the pie before V gets home from school tomorrow. And then maybe make some chocolate chip cookies - I am so craving homemade choco chip cookies... does it have something to do with the gravy?