If you dream of receiving chocolates, it means you crave them! This dream may be a desire to fulfill your wish of eating chocolates. This is a treat. Maybe you have done well in your day and your brain thinks you deserve a reward.
On the other hand, dreams are also influenced by the prevalent festive season. Since Christmas is getting near, and you brain is aware of this fact, you may experience dreams that come with the current holiday theme. We expect chocolates and other goodies at Christmas. It is part and parcel of the dream machinery, to dream of themes that are present in our waking life. Thus, dreaming of receiving chocolates is quite ordinary.