In The Name of Allaah, The Most Merciful, The Bestower of Mercy.
[ إِيَّاكَ نَعۡبُدُ وَإِيَّاكَ نَسۡتَعِينُ – You (Alone (i.e. Allaah) we worship, and You (Alone) we ask for help (for each and everything)].
Imaam Ibnul Qayyim [rahimahullaah]) said: This [ayah] necessitates having knowledge of the path leading to [servitude to Allaah], which is nothing else other than worshipping Allaah alone through the [deeds] He loves and is pleasing to Him, and seeking His help to worship Him [alone]. 
[إِيَّاكَ نَعْبُدُ–You alone we worship] is based on four foundations: Fulfilling what is beloved and pleasing to Allaah and His Messenger- through speech of the tongue, belief in the heart, deeds of the heart and actions of the limbs. Therefore, [إِيَّاكَ نَعْبُدُ–You alone we worship] is compliance with the rulings (attached) to these four foundations and consenting to them. On the other hand, [ وَإِيَّاكَ نَسْتَعِينُ –And you alone we ask for help] is to seek [Allaah’s] Aid and Assistance in these affairs and asking to be blessed with the ability to [act upon them]. 
He [Imaam Ibnul Qayyim (rahimahullaah)] also said: I used to hear Shaikhul Islaam Ibn Taymiyyah (rahimahullaah) often saying: [إِيَّاكَ نَعْبُدُ–You alone we worship] repels Riyaa and [ وَإِيَّاكَ نَسْتَعِينُ – And you alone we ask for help] repels pride.
 Al-Fawaa-id: page: 41;  and  Badaa-I At-Tafseer Al-Jaami Limaa Fassarahu Al-Imaam Ibnul Qayyim Al-Jawziyyah: pages: 41, 53: Vol: 1]