It is possible to get lost wherever you are. To be lost physically or lost mentally is usually a bad feeling but not always. Sometimes things are surprisingly discovered when one is out of their normal terrain. I have been personally out of my terrain for decades.
Seafarers are those who work or travel by the sea so an Airfarer must be somebody who works or travels by air. Air travel has been rather easy and normal for a large number of lucky people for some time now but this has recently changed.
When one did jump on a plane it was normally all about the destination and the transport mode used was simply a long metal tube that zoomed through the sky and rapidly took you from A to B. Those little digital maps displaying what lands or seas you were flying above were informative but really you had no idea about your exact location except that outside you could see some pretty cumulus clouds looking like marshmallows. Such views meant that you were about ten kilometres high and moving very fast. You often nibbled on salty nuts as you watched a classic romantic, action, sci-fi, musical, horror, thriller movie which screened directly in front of you. You continued your sightseeing out the tiny porthole. You were an Airfarer pleasantly lost but on your way.