There are 2 ways, physically or with your soul.

The physical way would get your body outside the solar system, there your soul would reconnect naturally right away. And you are free and back in the real universe. Alive and in 2 dimensions.

Or with your soul. You exit thru the "other dimension where the soul resides" and enter into the real other dimension in the real universe where the soul resides.

Sounds complicated but its simple.