You don't need to tell the soul any commandments. The soul can never die. The body dies but the soul still lives, tastes and eats. Oh yes, I do believe that a soul has a taste for certain foods . That's why, when people have happy dreams, their souls wake up craving certain foods.
Some souls wake up craving ice cream, and some crave peppers.
I don't mean that either one is bad. Every soul is born for the purpose of good.