Discussion of סמיכות גאולה תפילה of מעריב and its relationship to the fact that תפילת מעריב רשות, understanding that תפילה not just enhanced by the גאולה that was just recited, but arguably, mainly a means of manifesting the expression of trust and commitment before Hashem which we developed during the ברכות של קריאת שמע של מעריב.