As regards the
celebration of the Christian Holiday by the believers; it is surely preferable
and even highly advisable that the friends should in their relation to each
other discontinue observing such holidays as Christmas and New Years, and to
have their festival gatherings of this nature instead during the Intercalary
Days and Naw-Ruz....
- Shoghi Effendi (From a letter written on behalf of Shoghi Effendi,
‘Directives from the Guardian’)