Saving the soul is one of the fundamental concepts in Christianity. It represents the main goal, the achievement of which the whole life of a Christian is directed - both spiritual and physical.
Man is a sinful being. Even at the dawn of his existence, he placed his desire above the will of God, thereby violating the natural order of things in the universe. Since then, man fell into the power of the Devil and could not help sinning.
The Son of God, incarnating as a person, accepting suffering and death, having risen from the dead, destroyed this "chain" that bound man, gave him the opportunity to save the soul - but it was an opportunity.
Salvation and the Church
It is important to remember that a person is not able to be saved on his own - only Jesus Christ can save him. To make this possible, a person must reunite with Him, become a member of his Divine Body. This is the Church; therefore, salvation is impossible outside the Church.
The reunion of man with God takes place in the holy Sacraments. The first of these is Baptism, "being born of the water and the Holy Spirit." Man is freed from original sin and is given the opportunity not to sin. True, nobody has yet been able to take full advantage of this opportunity: all Christians sin from time to time by falling away from the Church. The broken unity is restored in the sacrament of Penance (confession). Another sacrament, obligatory for all Christians, without which salvation is impossible, is the Eucharist (communion), in which a person receives the Body and Blood of Christ, Divine grace.
