Some religions and philosophies require many years, even a lifetime or several lifetimes, to achieve ultimate enlightenment and being one with all and absolute truth. But one can become an enlightened practical soul without years of difficult meditation and study. For enlightened reasoning, base your beliefs in logic and evidence. Ponder whether the premises of arguments are complete and necessary. Practice the principle of charity, to interpret the arguments of others in their best light.
Enlightened ethics recognizes the existence of a universal moral law based on the nature of persons.
Human nature endows us with independent minds which have an equal moral status. A universal ethic must transcend cultural or personal views. Punishment must be based only on restitution and protection. Acts which are welcome benefits are good. All other acts are morally neutral.