Good trigger should have a crisp consistent feel to it which gives confidence and is half the battle to shooting accurately.
I explain to my son that it is like sprinters in a race.

You have done all the preliminary checks, distance, aim point, wind etc.
On ya marks - This is settling the rifle into position, bringing the scope on target-ish and controlling the breathing.
Get set - This is bringing the cross hairs to almost your aim point and taking up the first stage.
Go - This is settling on the aim point and squeezing through the second stage, controllably, and holding the rifle until the scope settles back on target.