This text comes from The Book of Scottish Song, edited by Alexander Whitelaw, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
"In life's gay morn," when hopes beat high,
And youthfu' love's endearing tie
Gave rapture to the mutual sigh
Within the arms of Mary,
My ain dear Mary;
Nae joys beneath the vaulted sky
Could equal mine wi' Mary.
The sacred hours like moments flew,
Soft transports thrill'd my bosom through
The warl' evanish'd frae my view
Within the arms of Mary;
My ain dear Mary,
Nae gloomy cares my soul e'er knew
Within the arms of Mary.
Young fancy spread her visions gay,
Love fondly view'd the fair display,
Hope show'd the blessfu' nuptial day
And I was rapt with Mary;
My ain dear Mary,
The flowers of Eden strew'd the way
That led me to my Mary.
But life is now a dreary waste,
I, lanely, wander sair depress'd,
For cold and lifeless is that breast
Where throbb'd the heart of Mary;
My ain dear Mary,
She's gane to seats of blissfa' rest,
And I ha'e lost my Mary.