Little to no traffic/car exhaust to gag on.
Fresh air and open, but not too open space.
Feeling connected - it's a place to rub up against history and imagine what peoples lives where like and how this and that person with the same name were related.
Reading gravestones is like people watching, only less chance of being caught.
It's a peaceful place to walk.
Feeling like a natural part of the cycle of life.
Being reminded life is finite and to make the most of it.