The main rule in life for anyone with an interest in their spirituality is that there is no limitation. A key fact in spirituality is that energy follows thought. What you put energy into is what is likely to happen.

Before we reincarnate into creation, as spirit, as souls, we are on the inner planes considering the karmic package we have for that life, and the lessons on the timeline. Then we look in the wardrobe of the possible personalities to wear and get the one that matches the karma that needs to be balanced out or burnt off.

Then into creation we go.