This text comes from The Poetical Works of Robert Burns, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
When I think on the happy days
I spent wi' you, my dearie;
And now what lands between us lie,
How can I be but eerie!
How slow ye move, ye heavy hours,
As ye were wae and weary!
It was na sae ye glinted by
When I was wi' my dearie.