Heard this at a song circle tonight. Can anybody tell me about it?

CURRAGH OF KILDARE

The winter has passed
And the summer's come at last
The small birds are singing in the trees
Their little hearts are glad
Ah, but mine is very sad
For my true love is far away from me

The ribbons I'll wear
And I'll comb back my hair
And gallants I bring I will appear
And straight I will go there
To the Curragh of Kildare
For it's there that I'll find tidings of my dear

All you who are in love
Aye and cannot it remove
I pity the pain you do endure
For experience lets me know
That your hearts are filled of woe
It's a woe that no mortal man can cure

The rose upon the briar
And the water's running clear
Brings joy to the linnet and the bee
Their little hearts are blessed
And but mine can know no rest
For my true love is far away from me

Winter has passed
And the summer's come at last
The small birds are singing in the trees
Their little hearts are glad
Ah, but mine is very sad
For my true love is far away from me

Source: https://lyrics.fandom.com/wiki/Bert_Jansch:Curragh_Of_Kildare