Every runway used by IFR aircraft normally has a procedural approach defined and published. This generally involves the aircraft flying over a fix (navaid or 'beacon') on or close to the airport (where the aircraft can hold if necessary), flying away from the airport on a set track while descending (going 'beacon outbound'), then at some point (perhaps ten miles) from the airport turning back towards the airport aligned with the runway to make an approach (becoming 'inbound track established' or just 'established').