You were one of the lucky ones!! Your house sold in one day.
Sometimes sellers will assume that the house was underpriced and they could have sold it for more. This is not necessarily the case if you did your homework before putting your house on the market. You met with your Real Estate Agent and discussed price, you saw the comparables and agreed to a listing price. Then you spent a lot of time and effort to get your house ready for the showings with the help of a home stager. Your Realtor also did a lot of preparation so that when it hit the MLS system, it was stunning!
This should be a time to celebrate your sale! Be happy because if you look around, I am sure there are a few other homes that are still for sale.
Be happy and enjoy!!