The phrase "have it all" refers to the state of having everything one could possibly want or need in life. However, there are many alternative ways to express this idea. One could say that they have everything they could wish for, that they've achieved their dreams, or that they've reached the pinnacle of success. Other ways to describe the same concept include having the world at one's feet, living the dream, or being at the top of one's game. Ultimately, the phrase "have it all" conveys a sense of satisfaction and fulfillment, and there are many synonyms that can convey that same meaning in different ways.