How do you say welcome to my world in Maori?

There isn't a direct translation for "Welcome to my world" in Māori that perfectly captures the sentiment. However, here are a few options, depending on the context and the level of formality you're aiming for:

Formal:

* Nau mai ki te ao o au. (Literally: "Welcome to the world of me.")

* Nau mai ki taku ao. (Literally: "Welcome to my world.")

* Nau mai ki te ao e noho nei au. (Literally: "Welcome to the world where I live.")

Informal:

* Haere mai ki toku ao! (Come to my world!)

* Tena koe, nau mai ki taku ao! (Greetings, welcome to my world!)

More poetic:

* Nau mai ki te whenua e ora nei ahau. (Welcome to the land where I live.)

* Nau mai ki te ao e whakamahia nei e au. (Welcome to the world that I use/inhabit.)

Ultimately, the best way to say "Welcome to my world" in Māori would depend on the specific situation and your relationship with the person you're speaking to.