In explaining the ayah 205 of surah “al-‘araaf”, Hakeemul Ummat Hazrat Mawlana Ashraf Ali Thanawi ra said:

“From this it is evident that there is a form of zikir (remembrance) that there is no gaflah (forgetfulness). This is the fikir (thinking). Although in it there are no movements of the tongue at all, neither khafi (concealed) nor jali (obvious).”

Masail us Sulook min Kalam Malik ul Mulook, page 213