We have several sculptures in our home. When plural, it takes the definite article if it refers to a definite, specific group and no article if it is used in a general sense. The guest of honor arrived late. You are welcome as a guest in our home. The guests at your party yesterday made a lot of noise.
Guests are welcome here anytime.
The is sometimes used with uncountable nouns in the same way it is used with plural countable nouns, that is, to refer to a specific object, group, or idea. Information is a precious commodity in our computerized world. The information in your files is correct. Sugar has become more expensive recently. Please pass me the sugar .