use pillars in a sentence.
Perhaps now is the best time, with pillars falling down...
No one gives a damn that the pillars are different color.
The pillars could be interpreted as two different communities.
Mentioning the color just serves to describe which of the two pillars has the weaknesses.
I see the same thing - sometimes the ice is fractured and has voids, and there are irregular pillars/pyramids of ice sticking up!