By the use of narration to present facts and details.
Using description/descriptive explicatives to build an image in the reader's mind
Using the tools of comparing and contrasting.
Analogies and incorporating symbolism
It interprets the main idea
The tone in the last stanza is regretful. The poem is about a man who received advice from a wise man that he can give away all his wealth but not his heart. He's told that once you give away your heart, you lose it and end up regretting it. He experiences it and regrets afterwards.
