Caesar's crossing of the Rubicon was a calculated decision that he had been planning for some time. He had amassed a large and experienced army in Gaul, and he had secretly negotiated alliances with several powerful political figures in Rome. He also had the support of the majority of his soldiers, who were loyal to him and believed in his cause.
Caesar's objective in crossing the Rubicon was to take control of Rome and establish himself as its ruler. He believed that the Roman Republic was in decline and that he was the only one who could restore it to its former glory. He also saw himself as a champion of the common people and believed that he could bring about social and economic reforms that would benefit the majority of Romans.
Caesar's crossing of the Rubicon was a success and he was able to quickly seize control of Rome. He defeated the forces loyal to the Senate in several battles, and eventually forced the Senate to accept his terms for peace. Caesar became the undisputed ruler of Rome and established himself as its first emperor.