As a Hindi tutor, I get a flurry of enquiries on a daily basis from a number of people who just don’t seem to know the difference between two simple words. It's a common mistake and easy to make for those not familiar with India.
In vedas, the universe is called Trilok, the three worlds. Namely, the lokas are Dayu, Antariksha, and Bhu. All three worlds are present here in our body. Our body is said to be a limited replica of the universe.