"Where two or three are gathered together in my name, there I am in
the midst of them."
"The sacraments are effacious signs of grace, instituted by Christ and entrusted to the Church, by which
divine life is dispensed to us" through the work of the Holy Spirit." (Catechism of the Catholic Church,1131 and 774)
Sacraments of Initiation: Baptism, Confirmation (or Chrismation , as it is called in the Eastern Churches), and Eucharist.
Sacraments of Healing:Penance and Reconciliation and Anointing of the Sick.
Sacraments at the Service of Communion: Holy Orders and Matrimony.