American Senate is like "the saucer in which the boiling tea of the House is cooled".
 

American Senate is like "the saucer in which the boiling tea of the House is cooled". Elucidate

Can anyone solve this question please with detail reply.

Can't say much in detail but I think it's about the fact that most bills and legislation of the lower house are to be approved by the Senate and it also has the power of "filibuster" which it can use to delay or block legislation. So in a way, it can "cool down" the chaos of the legislature