plz answer the question asked by non shia with proper reference. All these Imams are from the same blood line meaning from Ali's family meaning God created a special blood line different from me & you!
becouse they werent like us they were deffrent us in ibadat, akhlaaq ilm and other things that is why they were deffrent even in blood also and that is a possible thing for allah and no any problem in that subject like malaeka ( angle )