The easiest way to understand it is the economics of the law of supply and demand.
Inflation is always on the rise, but it is controlled. If there is a massive deflation, companies will either have to cut wages or lay off workers. No one, including you, will want to accept a pay cut. Every employee expects his or her salary to increase, but a deflation will force employees to cut wages.
For some countries, they can control inflation because they have the resources in doing it and they can sustain their own economy. But for those countries that keeps on importing and they don't have the resources, they rely on other countries resources and so if they are hit with inflation that creates a domino impact and they're all affected.
The easiest way to understand it is the economics of the law of supply and demand.
Even a massive deflation can cause losses to businesses that are enough to destroy the economy. Inflation and deflation tell us about the price level of a country, and moderate inflation is beneficial for a country's economy. If production increases, your economy will be strong, but there is no obligation that a deflation will occur.
Also tells in general the kind of governance and leadership that country has.