Normal dimension

Hello. I want to learn how to create a dimension similar to the minecraft starter world. What would be the sun and the moon, there was night and day, the weather, and in the caves it was dark (shadows). The problem is that I can't do it. Now the whole world is dark, then in the caves it is light and there are no shadows, then there are no heavenly bodies. This may be easy for you, but I need your help. Can you send a screenshot of the program window, where the necessary settings are indicated for creating dimension?