<span>"It took them a minute to grasp what he was saying, even who he was. " This line gives us a hint that they probably had forgotten about Ravi because they tried so hard to remember who he was.And indeed, the next sentence which says "They had quite forgotten him." confirms that they definitely had completely forgotten about him.
The sentence at the end of the paragraph - "</span><span>Having disappeared from the scene, he had disappeared from their minds." gives us an idea that Ravi was completely wiped out from the children's minds, which is a saddening truth. </span>
The author could be referring to a cage to describe the feelings of the person's life. using the word cage to identify the emotions from the person. Maybe the person, the author is writing about feels like he or she is stuck in the circumstances of everyday life referring to a cage. He or she could be dealing with tough situations and they could be feeling trapped like in a cage. The author could be describing the patterns of the person's way of making decisions. which hinders them and causes them to make wrong choices That keeps them stuck in a cage emotionally.
Meaning all eyes on her everybody was shocked