“It’s like a price label in a store that says GBP 0.88/Box, you can buy one box for GBP 0.88, or if you have one box you can sell it for GBP 0.88.”
So using the “bad” direct/indirect terminology, GBP 0.88/Box is the direct quote or direct price for buying 1 box. So when you go to the store, the direct quote is what they are showing as the price for one bo, i.e., it’s the direct quote for buying/selling one box.
If next day you go to the store and tell them you want to buy one GBP, they are going to think you are crazy until they realize you’re a CFA geek and you really mean you want to sell them one box and walk awy with some GBP! In that case, the price of one GBP is not obvious “directly”, hence it is indirectly obtained from GBP 0.88/Box, or 1.14 Box/GBP, so you have to give them 1.14 boxes to walk away with one GBP.