What does amir say about clichés? why does amir use the cliché about "an elephant in the room" to describe his meeting with rahim khan?

Amir uses the cliché about "an elephant in the room" to describe his meeting with Rahim Khan because Rahim Khan talks about the issue when no one or nobody in the room wanted to talk about because it is too sensitive.

Dr.king , i would take my mental flight by egypt and i would watch god’s children in their magnificent trek from the dark dungeons of egypt through, or rather across the red sea, through the wilderness on toward the promised land.his  speech"i  have a dream" to encourage people that change will come. this  speech  was very important during the civil rights movement and was a contributing factor in the end of racial injustice in society. the  intended audience  of "i  have a dream" is white people. i hope this