The author's purpose when writing about the benefits of yoga over weight lifting is most likely to PERSUADE (D) readers to perform yoga more often than weight lift.
Actually, satire is an artistic genre. It can be found in literature, painting, caricature, performing arts, cinema, etc. Satire uses irony or sarcasm in order to shame and ridicule the vices, absurdities, insanities or flaws of a person, a system, a religion or a political ideology.
To find your voice in writing what type of writer you are and be able to hear it from your tone/mood.
