God tells Adam: "cursed is the ground because of you," and this word "ground" is the same place that Adam came from. It's the same word that Adam came from.
And then God tells Adam that he will RETURN to the ground.
This "return" is also repentance. Dying… to self.
to return, turn back
to turn back (to God), repent
H7725: שׁוּב
By the sweat of your brow
you will eat your food
until you return to the ground,
since from it you were taken;
for dust you are
and to dust you will return.
Genesis 3:19 (NIV)