When thou awakest bless thyself with the sign of the Cross, and pray that God would so enlighten thee with the light of his Holy Spirit, as not to consent to sin.
When thou hast put on thy clothes, give not way to idle words or vain fancies,but, lift up thy heart to God in silence, and prepare thyself to pray as hereafter follows.
After prayers, purpose firmly and constantly within thyself not to commit willfully, that day, anything whereby God or thy neighbour may be offended.
O God the Father, who saidst in the beginning, Let there be light, and it was made: enlighten my eyes that I may never sleep in sin, lest at any time the deceits of the enemy, or my own corruption, should prevail against me.
O God the Son, most beautiful and true light, shining in darkness, and enlightening every one that comes into this world: expel away from me all clouds of ignorance, and give me understanding, that in thee, and through thee, I may see and know the Father; whom to know, is to live; and to serve, is to reign forever.
O God the Holy Ghost, who in infamest the wills of all those in whom thou vouchsafe to dwell with heavenly affection, pour into my mind the gifts of holy charity, that, despising all vain and transitory things, I may with a continual desire long for the true and everlasting joys of thy heavenly kingdom.
O Holy Trinity, one God, defend me this day from the deceits and temptations of the devil, keep me from all sin, and preserve me from sudden and unprovided death, raise up, O God, my body from sleep and drowsiness, and my soul from sin, that I may praise and glorify thy holy name, to whom belongs all benediction, and honour, and wisdom, and thanksgiving, now and forever. Amen.
Lastly call to mind thy affairs with composure or spirit, and resolve to spend the day to come, as if it were the last of thy life.
The Key of Heaven or a Posey of Prayers From Catholic Authors. Imprimatur 1918