Christians are consecrated, that is, set apart from other things or ways of life for God –the Father, Son and Holy Spirit– through the sacraments of Initiation. Our entire life as a Christian is based on our reception of and living out of our Baptism, Confirmation and the Eucharist.
As with any act of consecration we make a personal commitment to be in relationship with the Lord; it is begging the Lord to reign in our heart; the act of consecration means putting the ego aside in order to enter into personal relationship with Christ. Coming to Christ is coming to our eternal destiny.
Making the consecration takes me to infinite love of Jesus.
At a sacramental level we concretely re-consecrate ourselves to the Lord each time we worthily receive Holy Communion and by making a good confession. One way of keeping this reality in front of us is by attending to making the first Friday devotions.
Before the image of the Sacred Heart, make the consecration to the Sacred Heart given by Saint Margaret Mary Alacoque:
O Sacred Heart of Jesus, to You I consecrate and offer up my person and my life, my actions, trials and sufferings, that my entire being may henceforth only be employed in loving, honoring and glorifying You. This is my irrevocable will, to belong entirely to You, and to do all for Your love, renouncing with my whole heart all that can displease You.
I take You, O Sacred Heart, for the sole object of my love, the protection of my life, the pledge of my salvation, the remedy of my frailty and inconstancy, the reparation for all the defects of my life, and my secure refuge at the hour of my death. Be You O merciful Heart, my justification before God Your Father, and screen me from His anger which I have so justly merited. I fear all from my own weakness and malice but placing my entire confidence in You, O Heart of Love. I hope from Your infinite Goodness. Annihilate in me all that can displease or resist You. Imprint Your pure love so deeply in my heart that I may never forget You or be separated from You.
I beseech You, through Your infinite Goodness, grant that my name be engraved upon Your Heart, for in this I place all my happiness and all my glory, to live and to die as one of Your devoted servants. Amen.