Hazrat Mufti Ebrahim Salejee (Daamat Barakaatuhu) mentioned:
We all have been created for the ‘ibaadat of Allah Ta‘ala. However, There are different types and levels of ‘ibaadat. Some are direct, such as salaah, tilaawat, and zikr, while others are indirect and ultimately become ‘ibaadat, like eating and wudhu. The soul and rooh of all ‘ibaadat is the zikr (awareness and remembrance) of Allah Ta‘ala. This brings life to the ‘ibaadat and enhances its value. ‘Ibaadat without zikr is like a dead corpse.
Source: Stepping Stones-Part One