"G-d, your G-d was with you, you lacked for nothing" (Deuteronomy 2:7)
The wise King Solomon said, "One who desires money is never satisfied with what he has" (Ecclesiastes 5:9). So it is with all physical pursuits. They are insatiable.
An alcoholic saw a sign on a tavern, "Grand opening! All the booze you want for $1." He promptly ordered $2 worth.
Moses is telling us that the closer we are to G-d, the less are our wants and needs. If we are distant from G-d, our wants and needs may be insatiable.