Feast of the Guardian Angels
See, I am sending an angel before you, to guard you on the way and bring you to the place I have prepared. Be attentive to him and heed his voice. - Exodus 23:-20-21a
Update: Here's a prayer that Carmel so kindly directed to me:
GUARDIAN ANGEL PRAYER
O MOST holy Angel of God, appointed by God to be my guardian, I give thee thanks for all the benefits which thou hast ever bestowed on me in body and soul. I praise and glorify thee that thou condescended to assist me with such patient fidelity, and to defend me against all the assaults of my enemy.
Blessed be the hour in which thou were assigned me for my guardian, my defender and my patron. In acknowledgmentand return for all thy loving ministries to me, I offer thee the infinitely precious and noble Heart of Jesus, and firmly purpose to obey thee henceforward, and most faithfully to serve my God. Amen.
O my good Angel, whom God, by His Divine mercy, hath appointed to be my guardian, enlighten and protect me, direct and govern me this day. Amen.