Answer: It is a broad term that includes all apparent and hidden sayings and deeds that Allah loves and is pleased with.

Examples of the apparent sayings and deeds include making Dhikr with the tongue, like Tasbīh (glorifying Allah), Tahmīd (praising Allah), and Takbīr (proclaiming Allah’s greatness), praying, and performing Hajj (pilgrimage).

On the other hand, reliance on Allah, fearing Him, and having hopes in Him are examples of the hidden aspects of worship.