Who is the speaker? What is he like? What are his highest values? How seriously do you take his pronouncements? How does he justify his feelings? How does he compare his interests with those of other people?
The speaker in the poem 'Green Grow the Rashes' by Robert Burns is a man who is indicating his admiration of the opposite sex - females - "lasses".
This man is like many red-blooded males who enjoy the company of woman and make a point of making themselves available to women. From the passion in the poem, this man is exuberant and vibrant and welcomes his time spent with women.
His highest values, as indicated by his speech in this poem, is that he enjoys spending quality time with women, as their 'way' is an inspiration to him and a comfort to him; therefore, he values this greatly. The man of this poem indicates that enjoying a fine woman is better than attaining riches - which in the end, do not satisfy as much as a good relationship with a woman can satisfy.
I take his pronouncements seriously based on my experiences in my marriage. The love and companionship of a fine woman in marriage is something wonderful.
The man justifies his feelings by saying that:
The sweetest hours that e'er I spend,
Are spent amang the lasses, O!
He compares his interest in women with those of other people by saying that. in essence, the wisest men that people ever see are those who enjoy women and spend time with them and can relate to them and learn from them. He indicates that those who do not embrace the gift of women:
Ye're nought but senseless asses