The purpose of everything is to reveal The Truth . Atheism serves to maintain the Higher Truth that resides beyond ideology and belief systems. God has made the material realm of form, which defines difference , one expressed a "variety" and "diversity", which is suitable for the capacity to choose , hence, freewill . The mortal plane is purgatorial, allowing for positivity, negativity, as well as neutrality as potential options and outcomes. Out of His Unconditional Love , it is God s Will that we have freewill , so that we may choose Him on our own, which demonstrates that He does not rule by "force". Love that has to be forced cannot be love. Therefore, atheism is completely necessary in God s Plan, to ensure choice is always present.
In order for freewill to have a purpose, available options must be present to select from. There would be no need for freewill is God were to reveal Himself to us in All of His Mystery . The human mind and intellect cannot comprehend or conceive of the Enormity of Divinity , nor is it possible for us to know all there is to possibly know. Therefore, we accept God or not, on the faith that our conviction is true (unless you re agnostic), which cannot be "proven" or "disproven", and only apply to the material realm of linear form. An Unlimited God cannot be restricted to the boundaries of a this and that , here and there , now and then .