Question: what are the four passing sights?
Answer: First Sight – An Old Man. The first thing that Siddhartha saw was an Old Man – weak and frail. ... 
Second Sight – A Sick Man. The second sight was a sick man. ... 
Third Sight – A Corpse. The third thing that Siddhartha saw was a corpse on a funeral pyre. ... 
Fourth Sight – A Holy Man.