The song "Viva la Vida" by Coldplay reflects on the rise and fall of power and the consequences that come with it. In the lyrics, the singer describes a time when he used to rule the world, but now finds himself alone and sweeping the streets that he once owned. This represents a loss of power and influence.
The lyrics also touch on the unpredictability of life, as the singer used to take risks and feel the fear in his enemies' eyes, but now feels trapped and discovers that his castles were built on frail foundations. This symbolizes the fleeting nature of power and the realization that it can be easily lost.
The chorus references Jerusalem bells and Roman cavalry choirs, which could be interpreted as religious and historical symbols of power and glory. The singer seeks a mirror, sword, and shield, symbolizing the need for guidance, strength, and protection. The idea of missionaries in a foreign field suggests the search for purpose and meaning in unfamiliar territory.
Overall, the song portrays the disillusionment and emptiness that can accompany the pursuit of power. It also highlights the fleeting nature of success and the realization that true fulfillment cannot be found solely in external achievements.