@izzythepush,
Currency movements are really interesting.
If your currency goes down your exports get cheaper and your imports more expensive which seems pretty good for your current account - except most nations carry a debt so even the interest payments get way more expensive.
And depending on your economy and your production base it can have wild impacts on your cost of living. Add to that trade is more globalised what was once a isolated domestic market is now subject to international supply and demand. So Oz consumer products (whitegoods, electronics and cars) are virtually all imported and price varies depending on what percentage of a US dollar ours will buy so a big hit to CPI when the dollar goes down. Natural gas - which way have in abundance - is getting way more expensive here because domestic users are now bidding against the international market.
Australian beef prices go up as China eats more of it. We get Peruvian limes and Californian lemons (well we did when the Oz dollar had parity).
Even our famously overheated real estate market is at least partially affected by overseas investment.
A high CPI then affects spending patterns and consumer confidence which slows money churn and kills local producers/suppliers which stunts GDP, which impacts your currency value.
It's hard not to think of an economy as a herd of cats that you try to steer away from various cliffs as you see them on the horizon. It feels like our respective governments are getting more and more myopic and the cliffs ever closer before we veer wildly away (e.g. the GFC) - and I think that is because short term politics is winning over long game policy.