How is it illogical. Lets assume that there does indeed exist an All Mighty Creator who designed everything with intent and purpose. This being, who created intelligent humanity with a conscience is also intelligent. It is known fact that all intelligent beings/species try to communicate (after all, that is how our race became civil yes?). Would it not then be common sense that the Supreme Intelligence would want to communicate with the intelligent beings that He Himself formed? Would not this being want to establish a relationship with other said intelligence? Think about it, every creature on earth establishes some sort of relationship with their kind. There have been tests done by many that showed isolation is actually harmful to species capable of any level of intelligence. If every animate form of life on earth seeks to establish relationship and communication, how then can you assume that said "God" would not do the same? I can also go into detail as to why the Abrahamic God is the most rational and probable ultimate being if you are interested.