burn more then you eat???

so what your saying is . . . if my intake is 1400 cals that i need to burn more then that in a day to lose weight??? . . . id be in the gym for like 6 hours if i did that . . . this just makes no sense to me. so then why if im in the gym for just an hour a day 3 days a week that i will still lose weight?? (even if im not burning 1400 cals)

No you burn about that many calories DOING NOTHING.

MFP has already figured out your total calories you need to eat per day to lose 1lb etc. a week. That's WITHOUT exercise. You'll notice that when you actually add exercise in, the calorie limit goes up. Why? Because it's telling you to eat your exercise calories. Large deficits aren't really good to do because while you will lose weight, what kind of weight will it be? In many cases you'll lose lean muscle tissue which LOWERS your metabolic rate even more. Then you have to eat even less to compensate for less of a calorie burn to continue to lose the same amount of weight each week.
Be efficient. Exercise hard and eat back the calories. The hard exercise will RAISE your metabolic rate and burn more fat at rest.

That"s not what it means...You burn calories all day long walking, sitting breathing, basically living! If you need 1400 per day according to the formula, and you did not add any exercise, you will lose weight without going to the gym...If you eat more than 1400, you will pick up weight....Any exercise you do is a bonus and will aid your weight loss>>>>

You burn more than 1400 calories by existing. You could lay in bed for an entire day and still burn those calories. When you input your weight into MFP, it calculates how many calories your body burns without exercise and then subtracts a certain number of calories for you to lose the weight, then presents you with a total number of calories to eat in a day.