Zion and Jerusalem in Jewish prayer and ritual
Following the destruction of the Second Temple in 70 CE and the subsequent Jewish diaspora, classical Jewish liturgy became a primary vehicle for preserving the national memory of Jerusalem and the hope for the restoration of Zion. Consequently, explicit references to Zion and Jerusalem are ubiquitous in daily, Sabbath, and holiday prayers.
Source: Wikipedia — Zion and Jerusalem in Jewish prayer and ritual (CC BY-SA 4.0)