That comes down to the question of whether you think that the promise Our Lord made in John 16:13 that the Holy Spirit would lead us into all truth was meant to be given to each individual Christian, or to the whole Church.
From the earliest times, the apostles were clear which was the correct interpretation:
The Church is “the pillar and foundation of the truth” 1 Timothy 3:15, Our Lord Himself makes the promise that whatever the apostles bind on earth will be bound in heaven (Matthew 18:18). This means that the Church’s ways are not “man’s ways” but the way of God. It’s hard to believe, but this is the depth of the riches of the mystery of the Incarnation, that in Christ, God’s ways and man’s ways converge, that God chooses to save man through man, not only in Christ Himself but in all those who bear His name, His Chrism (anointing), who are made sharers in His divine nature (2 Peter 1:4) through baptism into the one Holy Catholic and Apostolic Church, for which Our Lord Himself prayed that we would be one as He and the Father are one (John 17:21). It’s hard to believe that God would trust us, us fallible humans, with such a gift, but believe it, this is what it means that Jesus Christ came in the flesh.
Consider the first century Jewish Christians. Blood for them was something unclean, something tainted, something that spoke of man’s ways, not God’s ways. Ritual cleaning was important to avoid what was unclean, to return the outside appearance of things to the purity that spoke of God’s otherness. It’s for this reason that St John goes to such lengths to say that God came “not by water only but by water and blood” 1 John 5:6, not only in the untainted purity of the God of Heaven but in the earthly, messy, real-world fleshiness of the Son of Man. He is the head, we the members of His Body, the Church.
Wow. Just wow. :heaven: God has given such grace to us, undeserved.
When you reflect on it, it’s hard to see how it wouldn’t change your whole life, make you want to go out and make that difference, spread that love to all you meet.