The heaven in dream is the symbolism of happiness, joy, and divinity. You are feeling free and enjoying the life you are leading. Alternatively, the dream may suggest you to look at things in more serious way, otherwise you wont be able to recognize the evil and danger situations. Make sure you keep the tranquility that is in you, but at the same time keep your feet on the ground.
Read more about dreaming of Heaven in other dream meanings interpretations.