Suicidal ideation refers to thoughts about wanting to take one’s own life. Within this definition are two different ideas: passive suicidal ideation and active suicidal ideation. The passive type of thinking means that you wish you were dead, but you don’t plan to commit suicide. Passive suicide ideation is serious, because it can quickly become active. Active ideation means that you are not only thinking about suicide, but actively intending and perhaps even planning to commit suicide.