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Once you become a priest, you want to make sure that you excel at your job. This is the best way to earn a promotion in the ranks of the church. A good priest is dependable, and helps the members of his church and the community.  As a priest, you are responsible for the spiritual well-being of your congregation. You will perform sacraments, conduct Mass, and hear confession. An exemplary priest earns the designation "Monsignor". After you are a priest, any promotion that you receive will be by appointment. This means that you need to make a good impression on people who are in leadership positions above you. Work on relating well to others in your field.  Be an effective communicator. Make sure that you are comfortable speaking in front of a crowd. You already do this as a priest, and it will become more important as you advance in the church. Be confident and clear when you speak. Work well with others. As a bishop or cardinal, you will need to manage other priests. Practice listening to the needs of others, and effectively communicating instructions. A bishop is essentially the chief priest (or pastor) of a diocese. A diocese is the territory or region that contains the churches under a bishop's authority. An archbishop governs his diocese (called an archdiocese) and also oversees other bishops. The pope is responsible for choosing all bishops, including archbishops. Therefore, you need to make a good impression on those who advise him.  Make sure that you are in regular communication with the archbishop for your region. He will be able to offer a positive recommendation when asked for his opinion about you. Bishops gather for regular meetings, where they set policy and liturgical standards for their region. The pope is responsible for appointing bishops and archbishops. He relies on existing bishops to provide him with recommendations. Remember, you cannot formally apply to become a bishop or archbishop. You must be appointed. The pope's chief adviser in this process is the Apostolic Nuncio. He is the pope's representative to the government and church hierarchy in individual countries. A cardinal is a bishop who is chosen by the pope to receive this special designation. The pope selects archbishops to serve as cardinal of a specific diocese. Cardinals can either work at the Vatican or running their own archdioceses. Not all regions have a cardinal.  Areas with significant Catholic populations, such as Manila, Boston, and Baltimore, are often where the pope chooses to create a cardinal. Make sure you live in a region that has a cardinal. You will not be likely to rise to this position from a small, rural population. When you are a bishop, maintain a positive relationship with the cardinal of your area. Make it clear that you are eager to serve the Church, and demonstrate your effective administrative skills. Cardinals are active in the administration of the Catholic church. There is not a formal application or interview process to become a cardinal. You must be appointed by the pope.

Summary:
Be an effective priest. Hone your people skills. Become a bishop. Become a cardinal.