Only through continued frequent participation of the sacraments, can a parish grow in the love of God and the Brethren.
What are the sacraments?
As explained in the Catechism of the Catholic Church (hereafter CCC):
Christ instituted the sacraments of the New Law. There are seven: Baptism, Confirmation, Eucharist, Penance, Anointing of the Sick, Holy Orders and Matrimony. The seven sacraments touch all the stages and all the important moments of Christian life: they give birth and increase, healing and mission to the Christian’s life of faith. There is thus a certain resemblance between the stages of natural life and the stages of spiritual life.
They are the sources where we get the grace of God. Sources that come from the pierced side of Christ on the cross. It's like the Blood of Christ that enters your veins. Blood that cleanses us, strengthens us, renews us, nourishes, soothes, and transforms us.
Everyone is born deprived of the grace of God, of the infused virtues and the gifts of the Holy Spirit. To set us free from sin and lead us to holiness, the Lord instituted seven sacraments. They are sacred, holy, and give us sanctifying grace.
The communion of the sacraments: The fruit of all the sacraments belongs to all the faithful. All the sacrament links uniting the faithful with one another and binding them to Jesus Christ, and above all Baptism, the gate by which we enter into the Church.
The communion of saints must be understood as the communion of the sacraments… The name ‘communion’ can be applied to all of them, for they unite to God… But this name is better suited to the Eucharist than to any other, because it is primarily the Eucharist that brings this communion about.