require as useful, just, or proper; "It takes nerve to do what she did"; "success usually requires hard work"; "This job asks a lot of patience and skill"; "This position demands a lot of personal sacrifice"; "This dinner calls for a spectacular dessert"; "This intervention does not postulates a patient's consent"
If you say that someone involves themselves in something, you mean that they take part in it, often in a way that is unnecessary or unwanted. I seem to have involved myself in something I don't understand