The heart and tongue should be in agreement to benefit from Dhikr (Remembrance of Allah). Therefore, you should exert efforts to concentrate on what you are reciting, but if your heart sometimes gets distracted, there is nothing wrong in this, In sha’a-Allah (if Allah wills). (Part No. 24; Page No. 245) We advise you to always seek refuge with Allah from Satan when you experience any Waswasah (insinuating thoughts instigated by Satan).May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.