Hazrat Moulana Muhammad Ilyaas (rahmatullahi ‘alaih) once mentioned:
The true meaning of “Zikrullah” (the remembrance of Allah Ta’ala) is that no matter which place, situation and condition a person may be in, he is conscious and aware of Allah Ta’ala and of what Allah Ta’ala wants from him at that time. Similarly, he is conscious of the laws of Deen that are directed towards him at that moment. Generally, I emphasize and encourage my friends upon acquiring this form of zikr in their lives. (Malfoozaat Hazrat Moulana Muhammad Ilyaas (rahmatullahi ‘alaih) pg. 21)
Source: Ihyaauddeen.co.za