What is the purpose of Celo?

Could you please elaborate on the purpose of Celo? Is it solely focused on facilitating financial transactions using cryptocurrency, or does it have broader aspirations such as promoting financial inclusion and access to digital assets for the unbanked? I'm interested in understanding how Celo aims to achieve these goals and the unique features it offers to support them. Additionally, how does Celo plan to address the challenges and barriers that may arise in its mission?