With a view to develop khushu and khuzu in prayers, I have experimented and observed that while most of the methods did not yield constant results, doing continuous zikr in heart like "Al Ajal Ya Imam", "Ya Allah", "Allahu" and still reciting complete namaz without losing the continuity of prayers is very useful in attaining presence of heart and party.

Is such an act allowed in prayers, where one thinks (deep in the heart) about Allah s.w.t and His Masoomeen in various forms of Taqwa and ibadat in addition to chanting names of Allah s.w.t?

If no word is whispered and names are masumeen are taken in the form of dua its allowed.