What does the idiom "food for thought" mean?

Ideas or information worth thinking and reflecting upon.

 If someone is said to be "lost in thought," what does it mean?

They are deeply engrossed in their thinking and not paying attention to their surroundings.

They are physically lost and can't find their way.

They are daydreaming about their favorite food.

What is the meaning of the expression "the elephant in the room"?

An actual elephant that has entered the room.

A topic or issue that everyone is aware of but avoids discussing.

A metaphor for a large gathering of people.

What does the idiom "to see the bigger picture" mean?

To literally look at a large picture on the wall.

To have a broad and comprehensive understanding of a situation.

If someone is "preaching to the choir," what are they doing?

Sharing new and exciting ideas with a receptive audience.

Trying to persuade people who already agree with them.

Trying to convert people to their religion.

What does the expression "to question the status quo" mean?

To challenge or critically examine the current state of affairs or accepted beliefs.

To accept everything without any doubt or hesitation.

To blindly follow the existing rules and norms.

What is the meaning of the expression "soul-searching"?

Intensive self-examination or reflection on one's emotions and beliefs.