It has a multiplier effect. Government wants to spend money without raising it in taxes, forces the central bank to "loan" it money which it does via "printing"

It has a multiplier effect. Government wants to spend money without raising it in taxes, forces the central bank to "loan" it money which it does via "printing" (increasing the balance of the govt at the CB accounts). The government spends the money on salaries and pensions which is then deposited into banks, which use those deposits to justify even more lending.