Every time I fly to Africa I am followed by a former colleague from MS (now Action Aid). They are always on duty while I travel on my own free will. But we all crisscross continents and go to Africa again. A continuous ritual installed many years ago. For my own part it all began by coincidence. So much for my free will. Others might have had a more decided strive.
I am again on a KLM flight - it was also KLM that brought me to Africa the first time, a little more than 10 years ago.