There are several lessons I have learned from the play.
1) We should not presume things. We can believe something is true or a fact but it isn't. This is because we haven't investigated to be certain about what we claim is the truth. Remi believed that Thoni never loved him. He said in the presence of the pastor, Image, and Nyobi that he won't accept to be married (live) by a woman who never loved him. At the end, he regrets having uttered those words. The letter he was handed by the village woman which Thoni had written before she died was a testament that she did love him.
2) We shouldn't force people to do what they don't want. A person has the right to decide what he/she wants because he/she is a free-will human being. Remi ran to the city because he was forced to marry Thoni. He believed Thoni never loved him the reason he accepted to be married by his older brother. We should advise but never force anyone to do something.
3) Tribalism never benefits a nation. A nation isn't composed of one tribe or several. It brings disunity and hatred. It can lead to war (genocide) as witnessed in several countries in Africa.
4) People have the right to demonstrate when they feel the government is being unfair to them. People demonstrate to show they are not satisfied with the government. Thus, it needs to do something about it as Omange pointed out to Remi.