The hearts only find true delight and pleasure in loving Allah and drawing close to Him by doing what He loves, and this is only possible if the person turns away from every other beloved object.  This is the reality of La ilaha ill’Allah and it is the religion of Ibrahim, the Khalil, and indeed, all of the Prophets and Messengers, peace and blessings be on them all.

—Ibn Taymiyyah [d. 728H/1328CE]

(Majmu’ Fatawa, vol. 28, 32)

(Read on pg 133, The Light of The Qur’an: An Explanation to Surah Ikhlas and Surah al-Kafirun. Dar As-Sunnah Publishers. Birmingham:2010.)