Imaam Ibnul Qayyim [rahimahullaah] said:

It is not amazing when one who is healthy and unoccupied adheres to worship of Allaah and obedience to Him; rather what is amazing is the affair of that one who is weak, sick, hindered by affairs that pre-occupies him [or her] and faced with different circumstances, yet his [or her] heart is attached to the worship of Allaah and obedience to Him, and not in opposition to what he [or she] is able to do.


[Al-Fawaa-id: page: 246]