Past - The universe either came from nothing or has been here forever, both of which are illogical. Since our thought and communication are based on logic, it is unlikely that we will be able to explain where we came from in our lifetime. For thousands of years we lived under dictatorships where all power and decisions came from above. It should be no surprise the religions describe the universe as a large Kingdom ruled by an ultimate dictator, God.
Present - The undelying organization of people, governments, families, religions, businesses, and communications are moving from a top-down-linear structure to a flat-floating-point relationship. Democracy, capitalism, and the internet are quickly flattening out world organization. In our new world of decentralized non-linear decision making, it is hard to believe that one supreme being created everything and decides all right and wrong.
What to do - We don't know anything other than the fact that we want to be happy; therefore, Define things that will bring happiness to your life, and then spend some physical energy and follow the rules of logic to make those ideas reality.
Faith - We know that we like to be happy, but other than that all thoughts are just theories and opinions. Sometimes we feel we are 100% absolutely right but since the variables of the universe are infinite and in constant motion it is impossible to be 100% correct at any moment. It is important to remember that no matter how convinced we are, we should always remember that we are not 100% correct and quite possibly dead wrong. Faith is an opinion we hold to be true even though we know can't know for sure it is true. Through thousands of years of human existence faith in the rules of logic have proven to be powerful. Although there are other forces that contradict and defy logic, we should hold faith in the great powers of logic.
There will always be religions that describe our world and tell us how to act in that world. But the ancient religions that talk about magic by all-powerful beings will fade, while new decentralized logic based godless religions will take root.