Rebecca, Regarding your second question, “What does it need to be saved from?” I, again, went to the CCC which is online, if you don’t own a copy, and you’ll find it at the USCCB website.
Because (as was stated above), “The Church teaches that every spiritual soul is created immediately by God…and also that it is immortal: it does not perish when it separates from the body at death, and it will be reunited with the body at the final Resurrection. ‘Spirit’ signifies that from creation man is ordered to a supernatural end.”
So salvation refers to the soul and whether it is heading to a smoking or non-smoking end as a result of sin.
2030 It is in the Church, in communion with all the baptized, that the Christian fulfills his vocation. From the Church he receives the Word of God containing the teachings of “the law of Christ.”72 From the Church he receives the grace of the sacraments that sustains him on the “way.” From the Church he learns the example of holiness and recognizes its model and source in the all-holy Virgin Mary; he discerns it in the authentic witness of those who live it; he discovers it in the spiritual tradition and long history of the saints who have gone before him and whom the liturgy celebrates in the rhythms of the sanctoral cycle. (828, 1172)
2031 The moral life is spiritual worship. We “present [our] bodies as a living sacrifice, holy and acceptable to God,”73 within the Body of Christ that we form and in communion with the offering of his Eucharist. In the liturgy and the celebration of the sacraments, prayer and teaching are conjoined with the grace of Christ to enlighten and nourish Christian activity. As does the whole of the Christian life, the moral life finds its source and summit in the Eucharistic sacrifice. (1368)
I. Moral Life and the Magisterium of the Church 85-87, 888-892
2032 The Church, the “pillar and bulwark of the truth,” “has received this solemn command of Christ from the apostles to announce the saving truth.”74 “To the Church belongs the right always and everywhere to announce moral principles, including those pertaining to the social order, and to make judgments on any human affairs to the extent that they are required by the fundamental rights of the human person or the salvation of souls.”75 (2246, 2420)
2033 The Magisterium of the Pastors of the Church in moral matters is ordinarily exercised in catechesis and preaching, with the help of the works of theologians and spiritual authors. Thus from generation to generation, under the aegis and vigilance of the pastors, the “deposit” of Christian moral teaching has been handed on, a deposit composed of a characteristic body of rules, commandments, and virtues proceeding from faith in Christ and animated by charity. Alongside the Creed and the Our Father, the basis for this catechesis has traditionally been the Decalogue which sets out the principles of moral life valid for all men. (84)
2034 The Roman Pontiff and the bishops are “authentic teachers, that is, teachers endowed with the authority of Christ, who preach the faith to the people entrusted to them, the faith to be believed and put into practice.”76 The ordinary and universal Magisterium of the Pope and the bishops in communion with him teach the faithful the truth to believe, the charity to practice, the beatitude to hope for.
2035 The supreme degree of participation in the authority of Christ is ensured by the charism of infallibility. This infallibility extends as far as does the deposit of divine Revelation; it also extends to all those elements of doctrine, including morals, without which the saving truths of the faith cannot be preserved, explained, or observed.77
2036 The authority of the Magisterium extends also to the specific precepts of the natural law, because their observance, demanded by the Creator, is necessary for salvation. In recalling the prescriptions of the natural law, the Magisterium of the Church exercises an essential part of its prophetic office of proclaiming to men what they truly are and reminding them of what they should be before God.78 (1960)
2037 The law of God entrusted to the Church is taught to the faithful as the way of life and truth. The faithful therefore have the right to be instructed in the divine saving precepts that purify judgment and, with grace, heal wounded human reason.79 They have the duty of observing the constitutions and decrees conveyed by the legitimate authority of the Church. Even if they concern disciplinary matters, these determinations call for docility in charity. (2041)
2038 In the work of teaching and applying Christian morality, the Church needs the dedication of pastors, the knowledge of theologians, and the contribution of all Christians and men of good will. Faith and the practice of the Gospel provide each person with an experience of life “in Christ,” who enlightens him and makes him able to evaluate the divine and human realities according to the Spirit of God.80 Thus the Holy Spirit can use the humblest to enlighten the learned and those in the highest positions. (2442)”
THANK YOU CATHOLIC CHURCH!