Easiest and Hardest

Thoughts to fly by,
"... avoid the terrain, don't run out of fuel, and don't pick up a
package by its string"

The first 2 are easy, the last is the hard one.

wrote:
What in your view are the easiest and hardest aspects about flying? I
mean in the phase between takeoff and touchdown, so the obvious
"taxiing" doesn't count

Hardest would be countering windshear on finals or flying IFR through a
storm at low altitude, I'd imagine.

Hoping this thread gets responses

Ramapriya