The reward of remembrance of Allah (dhikr) is the facilitation (tawfiq) of dhikr itself. And Allah, most High, acknowledges this action of of His slave.
Dhikr removes heedlessness.
The method of dhikr for the novice seeker is the vocal repetition of the Holy-name (ism-e-dhat). For the moderately advanced (mutawassit) it is the contemplation (tasawwur) of this by heart (qalb). And for the graduate (muntahi) seeker it is the perpetual following of the commands of Shariah as though they are his instinctive nature.
Ahzab tahzib un nafus, Munajat e maqbool, ((zamimajat, Saeedi)) page 308