Each of Allah's divine attributes has practical implications in the life of a firm Muslim. Clear, comprehension of the uniqueness of Allah's nature improves a persons Taqwa, or belief in god. Having taqwa in our hearts throughout our daily life adds a feeling of contentment peace with one's self and constant happiness, for when they return to Allah He will say:
And thou, O soul at peace. Return to thy Lord well pleased with Him and He will be pleased with thee Holy Quran 89:28-29
Realisation that Allah knows all, hears all and sees all that we do is one of the most important aspects of Allah's nature that a Muslim can benefit from. Knowing that 'there are not two but that the third is Allah (hadith) increases what we might call our 'self-policing'. For example, when one is alone such as when a teenager is away from his strict parents, he may say that there is no one to fear so why bother praying? The answer to this is given in the following hadith:
"Fear Allah as if you can see Him, if you cannot imagine seeing Him, know that He sees you."
Allah sees everything that we do and so we should be faithful in our duties even when we are alone.
For those who have a very high realisation of the nature of Allah, they do not worship him for the fear of His hell, nor for the want of His paradise but because Allah is worthy of all praise. Imam Ali (AS), the cousin of the prophet says:
"O Allah, I did not worship You for the greed of your paradise nor for the fear of hell, but because you are worthy of all praise."
This is the ideal that all Muslims should aim for.