....
Perfecting faith is
accomplished when you worship Allah as if you see Him and that if you do not
see Him, He sees you. This is the degree of Ihsan, which implies offering acts
of worship as if one sees Allah, so that one would offer any act of worship
with utmost perfection and sincerity for if he/she does not see Allah, verily,
Allah sees him/her. Moreover, one should worship Allah on the basis that He
sees and watches him and knows one's condition. A true Muslim fulfills Allah's
Right upon him perfectly and truthfully in the best way.
Fatwas of Ibn Baz, Part No. 5; Page No. 211, alifta.gov.sa