The Catholic Church
From the Catechism of the Catholic Church, Simplified
The Spirit and the Church (748-750)
"Christ is the light of the nations. By proclaiming the Gospel, we hope that this light will shine out visibly from the Church" (Second Vatican Council). Just as the moon has only the light of the sun, the Church has only the light of Christ.
The Church depends totally on the Spirit, because the Spirit "has endowed the Church with holiness" (Roman Catechism) and the Church is the place "where the Spirit flourishes" (St. Hippolytus). Belief that the Church is one, holy, catholic, and apostolic is inseparable from belief in the Trinity. We do not believe in the Church but in God who bestowed his gifts on the Church.