This document discusses the opening and closing prayers of the Amidah (also known as the Shmoneh Esrei). It explores the historical development of these prayers and how their wording and placement has changed over time. Specifically, it analyzes the differences between the pre-Amidah blessing of G'ulah and the concluding Kaddish prayer, as well as how transitional prayers like Tachanunim help structure the sections of the Amidah. The document aims to provide context around the purpose and meaning behind various prayers within the Amidah service.