Why was Bastille stormed to set prisoners free, because it was a symbol of oppression, or as the first step to overthrow the French monarchy? (Explain)

Parisian revolutionaries and mutinous troops storm and dismantle the Bastille, a royal fortress that had come to symbolize the tyranny of the Bourbon monarchs. This dramatic action signaled the beginning of the French Revolution, a decade of political turmoil and terror in which King Louis XVI was overthrown and tens of thousands of people, including the king and his wife Marie Antoinette were executed