Why a holiday anyway? 

Holidays and holidays are a human idea whose purpose is to confirm a time order and instill values. That is why a holiday is important for every person, in every community and no one has a monopoly on the Jewish holidays.

  The symbols of the holiday are a code shared by all parts of Jewish society. Judaism is essentially pluralistic, there is not and never has been one Jewish view. The same symbol can be used by different people and groups in the nation - in a variety of interpretations. 

A secular holiday is not contrary to its origin - but expresses a positive attachment to culture out of a belief in the sovereignty of man and his creation.