I wish they could send me
To the moon and back with a cure for cancer
And save the lives of my great grandmama and my great grandaddy

from Big Boi (Ft. B.o.B & Wavves) – Shoes For Running Lyrics on Rap Genius

Meaning

He wishes that, instead of sending people to prison, they could be sent to do something productive.

For example, he would like to go find a cure for cancer to save his grandparents rather than sit rotting in a jail cell.

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