Primarily Allah has created a person to recognise him within the realm of creation. Creation is the distraction as well as the signs/symbols of what leads us to Allah. Prior to the advent of the Prophets (May peace and blessing be on all of them) the people were attributing the qualities of Allah to other 'things' and therefore committing an injustice by not recognising the completeness and uniqueness of each and every attribute of Allah by passing those attributes on to other 'things'. This leads us to understand that there is a failing in the ability to recognise this complete and uniqueness of the attribute. If one is able to understand this complete and uniqueness of the attribute in his understanding as well as in his action then he has reached the purpose of his life. An example of a person completeness would be that a person wakes up, goes to work, spend hours labouring, gets paid, on the way home buys food, cooks it and then sits down to eat. when he exclaims 'Allahamdullilah' with the understanding that it is not me who has provide but Allah and if he wanted to he could provide without any of these actions then his recognition of Allah is complete. However he could be tested in that believe by losing everything and having his entire life turned upside down but the question then remains does he still say 'Alhamdullilah' The above is one dimension since Allah then intervenes in that understand and actions and will place certain test that will challenge the understanding and action which we further understand to be 'Yaqeen' (belief).