In his poem about the tiger, Blake conveys that the tiger is a powerful yet sinister creature. He describes the tiger as "burning bright" which emphasizes its strength but also implies it is a destructive force. Blake also suggests the tiger's heart is "twisted" and corrupted, making it evil and not to be trusted. References to the tiger's "deadly terrors" further indicate it is a dangerous killer. Through these descriptions and a rhetorical question about whether God or the devil created the tiger, Blake prompts readers to question the existence of evil in the world.