Comfort was a feeling of ease or relief from grief, trouble, or worry.
In justifying his cause to Beverly Crusher, the Ansata terrorist Kyril Finn asked her "How much innocent blood has been spilled for the cause of freedom in the history of your Federation, Doctor? How many good and noble societies have bombed civilians in war, have wiped out whole cities. And now that you enjoy the comfort that has come from their battles, their killing, you frown on my immorality? I am willing to die for my freedom, Doctor. And in the finest tradition of your own great civilization, I'm willing to kill for it, too." (TNG: "The High Ground")