Secularism AND Humanism

Secularism says basically whatever your religious position/philosophy, including atheism, it is irrelevant in the eyes of the law. Secularism does not necessarily preclude strange rituals and prohibitions, it does however stand against any group being able to impose their rituals and prohibitions on even their own members and adherents in anything but a voluntary capacity.

Humanism is the idea that just because a holy book or quasi-historical figure or leader (spiritual or temporal) says "Thou Shalt" or "Thou Shalt Not" does not carry any weight above and beyond the deliberations and decisions of rational human beings working together to create a mutually agreed set of rules by which to live. They are often traveling in the same direction but they are horses of rather different colours.