When seeking to clarify the virtue of answering amen, the Rebbe of Radzymin compared it to the sound of joy a person emits when he is overcome with gratitude, such as a father bringing his child to the chuppah. At that time, he feels with all his soul the intense chassadim of Hashem that have accompanied him all the years, from when the child was born until now. But if he would try to start detailing all those chassadim, the reduction of his gratitude into words would dull the feelings that are bubbling up inside him. In contrast, when a shout of joy and gratitude erupts from inside him, which expresses the depth of his gratitude for all the miracles and chassadim that Hashem has showered him with over the years, “this sound includes so many words that he should have expressed, and doing so would have confused him.”
The mevarech, who details and expounds his gratitude, somewhat dulls the sense of gratitude. In contrast, one who hears a brachah from the mevarech, reduces all the emotions of his gratitude into one amen that erupts from the depths of his heart, and that includes all the feelings of gratitude that the mevarech did not include in his brachah. And because the one who answers amen thanks and praises more than the mevarech, we find that “the one who answers is amen is greater than the mevarech.” (Bikkurei Avi”v, Ki Savo)
