Yes, through the Catholic Church, one obtains eternal life since the Founder is God, i.e., God the Son—Jesus Christ. The Catholic Church was founded some 40 years after the death of Jesus Christ in AD 33.

The Catechism of the Catholic Church (CCC 1212) – The sacrament of Christian initiation: Baptism, Confirmation and the Eucharist – lay the foundation of everyday Catholic life.

Baptism is to remove the Original Sin (CCC 405) incurred by Adam. God inputted the Original Sin to all humans, with exception by God’s plan, who were born thereafter and removed only by this sacrament through the grace of Jesus Christ—God the Son and resulting to all humans on being born again – cleansed of the Original Sin. The Church pours water on the head of the candidate while the baptizer says: “I baptize you in the name of the Father, and of the Son, and of the Holy Spirit.”

Then, the sacrament of Confirmation is administered to the newly baptized at an appropriate occasion, immediately or later. This is necessary for the completion of the baptismal grace. Then the baptized “are more bound to the Church and are enriched with a special strength by the Holy Spirit.”

It is through the baptism and the confirmation that the new member of the Catholic Church continues to be able to receive the sacrament of the Eucharist. (CCC 1113) The life of the Church revolves around the Eucharistic sacrifice and the sacraments. Eucharist means thanksgiving. The Eucharist is the "food of eternal life" usually received at the celebration of the Holy Catholic Mass. The Eucharist is available throughout the day all over the earth. There is no more Eucharist in Heaven.

There are seven sacraments in the Catholic Church: Baptism, Confirmation, Eucharist, Penance, Anointing of the Sick, Matrimony, and Holy Orders. All these sacraments are with the presence of Christ—Emmanuel or Immanuel. In other words, the Triune God is present at all times in the life of the members of the Catholic Church from conception through all phases of the Catholic earthly life until Heaven. Only with sin can a Catholic be prevented from going to Heaven.

But the Catholic Church does not leave the members with sins to prevent them from entering Heaven. They are led to a final cleansing place to purge out their remaining sins in Purgatory until they turn up into a fully cleansed – 24-carat holy souls to enter Heaven.

Jesus—God the Son – is the Founder and Head of the Catholic Church—his Mystical Body – comprising all the members on Earth – in Purgatory – in Heaven for some 2023 years now, living by the Catholic (universal) Tradition. Jesus Christ—God the Son remains solely with the Catholic Church. He does not lend himself to the other so-called Christian churches.

After AD 1517 some members of the Catholic Church, led by a Catholic monk, protested and formed their separate churches, called the Protestant Reformed.

Since its inception in AD 1517 until AD 2012, only a matter of 495 years, there have been over 43,000 churches already, and increasing 125 annually, of various denominations and sects.

The Catechism of the Catholic Church (CCC 1212) teaches that the Catholics are born through the sacrament of Baptism and receive the "food of eternal life" in the Eucharist.

1 John 5:12: “Whoever has the Son has life; whoever does not have the Son of God does not have life.”

Don't ignore 1 John 5:17: “All wrongdoing is sin, but there is sin which is not mortal.” Everyone sins and falls short of the glory of God—there is no disputing that.

All sins are equally offensive to God. After all, James 2:10 says, "For whoever keeps the whole law but fails in one point has become guilty of all of it."

Although physical death still happens, those who believe in Christ and live good lives will be given eternal life in Heaven. The Catholic Church teaches that humanity will face two judgements: individual judgement and final judgement.