His given name was Maewyn, and he almost didn't get the job of bishop of Ireland because he lacked the required scholarship.
Far from being a saint, until he was 16, he considered himself a pagan.
At that age, he was sold into slavery by a group of Irish marauders that raided his village.
During his captivity, he became closer to God.
He escaped from slavery after six years and went to Gaul where he studied in the monastery under St. Germain, bishop of Auxerre for a period of twelve years.
During his training he became aware that his calling was to convert the pagans to Christianity.
His wishes were to return to Ireland, to convert the native pagans to Christianity. But his superiors instead appointed St. Palladius. But two years later, Palladius transferred to Scotland. Patrick, having adopted that Christian name earlier, was then appointed as second bishop to Ireland.
Patrick was quite successful at winning converts. And this fact upset the Celtic Druids. Patrick was arrested several times, but escaped each time. He traveled throughout Ireland, establishing monasteries across the country. He also set up schools and churches which would aid him in his conversion of the Irish country to Christianity.
His mission in Ireland lasted for thirty years.
After that time, Patrick retired to County Down.
He died on March 17 in AD 461. That day has been commemorated as St. Patrick's Day ever since.
Much Irish folklore surrounds St. Patrick's Day. Not much of it is actually substantiated.
Some of this lore includes the belief that Patrick raised people from the dead. He also is said to have given a sermon from a hilltop that drove all the snakes from Ireland.
Of course, no snakes were ever native to Ireland, and some people think this is a metaphor for the conversion of the pagans.
Though originally a Catholic holy day, St. Patrick's Day has evolved into more of a secular holiday.
One traditional icon of the day is the shamrock. And this stems from a more bona fide Irish tale that tells how Patrick used the three-leafed shamrock to explain the Trinity.
He used it in his sermons to represent how the Father, the Son, and the Holy Spirit could all exist as separate elements of the same entity.
His followers adopted the custom of wearing a shamrock on his feast day.
St. Patrick's Breastplate
I bind unto myself today
The strong Name of the Trinity,
By invocation of the same
The Three in One and One in Three.
I bind this today to me forever
By power of faith, Christ’s incarnation;
His baptism in Jordan river,
His death on Cross for my salvation;
His bursting from the spicèd tomb,
His riding up the heavenly way,
His coming at the day of doom
I bind unto myself today.
I bind unto myself the power
Of the great love of cherubim;
The sweet ‘Well done’ in judgment hour,
The service of the seraphim,
Confessors’ faith, Apostles’ word,
The Patriarchs’ prayers, the prophets’ scrolls,
All good deeds done unto the Lord
And purity of virgin souls.
I bind unto myself today
The virtues of the star lit heaven,
The glorious sun’s life giving ray,
The whiteness of the moon at even,
The flashing of the lightning free,
The whirling wind’s tempestuous shocks,
The stable earth, the deep salt sea
Around the old eternal rocks.
I bind unto myself today
The power of God to hold and lead,
His eye to watch, His might to stay,
His ear to hearken to my need.
The wisdom of my God to teach,
His hand to guide, His shield to ward;
The word of God to give me speech,
His heavenly host to be my guard.
Against the demon snares of sin,
The vice that gives temptation force,
The natural lusts that war within,
The hostile men that mar my course;
Or few or many, far or nigh,
In every place and in all hours,
Against their fierce hostility
I bind to me these holy powers.
Against all Satan’s spells and wiles,
Against false words of heresy,
Against the knowledge that defiles,
Against the heart’s idolatry,
Against the wizard’s evil craft,
Against the death wound and the burning,
The choking wave, the poisoned shaft,
Protect me, Christ, till Thy returning.
Christ be with me, Christ within me,
Christ behind me, Christ before me,
Christ beside me, Christ to win me,
Christ to comfort and restore me.
Christ beneath me, Christ above me,
Christ in quiet, Christ in danger,
Christ in hearts of all that love me,
Christ in mouth of friend and stranger.
I bind unto myself the Name,
The strong Name of the Trinity,
By invocation of the same,
The Three in One and One in Three.
By Whom all nature hath creation,
Eternal Father, Spirit, Word:
Praise to the Lord of my salvation,
Salvation is of Christ the Lord.