Admitting that all existence is from Him...
Admitting that all existence is from Him, none shall have the right, without His permission, to command His creatures, to bid and forbid them, and to make laws for them. This is called "unity of Legislative Lordship." At-Tawhid in worshipping. This is another stage of at-Tawhid. It is the unity of Divinity and worship. That is, none except Allah is worthy of being worshipped: "There is no god but Allah." This is also another outcome of that natural belief inherited in man.
If our existence is from Allah, the management and directing our lives are up to Him. The independent effecter in the world is He, and the rights to legislate and issue orders are solely in His hands, there remains no room for anybody else to be worshipped. Him alone we must worship, which means we should place ourselves, unquestionably, at His service. This is what servitude to Him means. Only the one who owns everything deserves to be worshipped.
In other words, deity is a result of believing in His Lordship. Man worships the one whom he feels to have complete mastery and full command over him. So, the natural outcome of the genetic and Legislative Lordship of Allah is that no one else should be worshipped. At-Tawhid in worshipping is another stage of at-Tawhid. It means that man should worship no one but Allah. The former stage was that there was no one deserving to be worshipped except Him.
This stage requires that man should practically worship no one but Allah. This is called "unity of worshipping." You might have realized that the Qur'an regards polytheism as a sin. When the grand sins are counted, "polytheism comes at the top of the list", as they say. This is worshipping, in practice, other than Allah, even if the worshipper did not believe that his worshipped one deserved worshipping, but he did it for some interests of his.
At-Tawhid in asking help is another phase of at-Tawhid. It means that man should practically seek the help of none other than Allah. Regarding Allah to be the real effective in the world means that no gain or loss affects us unless Allah wills it. So, how can we ask help from other than Him? Should we ask it from the one in whose hands is everything, or from the one who himself is in need of help, like ourselves?
So, one of the aspects of monotheism is the unity of asking help: You do we worship and You do we seek for help[^43] This is a kind of unification.