OK one more attempt and read slowly:

There is a fixed pool of money, wealth, whatever you want to call it whether you want to think of a global economy or only domestically. If it grows that is inflation. Inflation means you really didn't grow because the price of everything went up in relation. The same if it shrinks. Prices then drop which is deflation. Numbers might look bigger or smaller and wealth changed hands but the actual value of the wealth is finite.