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This famous love poem by the Scottish poet Robert Burns expresses a love that, according to the speaker, is eternal and will never diminish, whatever shall happen in life. Note the kind of images that the speaker uses to express his love to his beloved:
Till a' the seas gang dry, my Dear,
And the rocks melt wi' the sun!
O I will luve thee still, my Dear,
While the sands o' life shall run.
I am not too sure how your Scots is, but here the speaker is saying that his love will remain constant until all the seas run dry and until the rocks melt with the heat of the sun. His love will never change while the sands of life itself still run. Thus he uses a series of very powerful images to express his eternal love towards the loved one to whom this poem is addressed.