You say: "Indeed my prayer, my devotion, my living, and my death are for Allah, the Lord of the Worlds".
The devotion mentioned in the verse also means ceremony and sacrifice. It is commanded through verses 20: 14 that one should keep up the prayer to maintain the Book Dhikree. The believer who testifies Adhikr will only have the true concept of the Lord. So while he recites verse 1: 4 he will pray by soul not to include among the Arabic Quran reading Fujjar who hide and reject Adhikr. He will exist in that awareness in every standing, sitting, and laying as explained in verses 2: 152 and 3: 190-191. He is believing that the Spirit (soul + Life) of every creature is from the Lord of the Worlds, and the body is made with the mingling of sperm from male and ovum from female as told in verse 76: 2. He always declares by the mind that "I am nothing, nothing belongs to me, and everything belongs to the Lord of the universe". He serves the Impartial Lord by conveying His Message Adhikr throughout the world so that Lord will help him back as explained in verse 2: 157. The believer follows a lifestyle as explained in verses 7: 205-206. He also does great Jihad with Adhikr against the Fujjar as explained in verse 9: 73. See explanation 1: 1; 2: 130-131, 256, and 10: 104-106.