It is where the money actually lives. A store does not hold a balance of its own. It points at an agent wallet, and what you see as your store balance is that wallet’s balance.
Worth knowing because it explains a few things:
- Deleting a store never touches your money. It stays in the wallet.
- Two stores can point at the same wallet if you want them sharing one balance.
- To move money out, you withdraw from the wallet, not from the store.
