What about the 50 days of Easter?
In many of our traditions we observe the 40 days of Lent. But we don't seem to be very good at observing the 50 days of the Easter season.
Yes, we pull out all the stops in worship on Easter Sunday, but then we seem to immediately go back to business as usual. While we have special times and services during Lent, we fail to place such emphasis on the season of resurrection between Easter Sunday and Pentecost.
And yet, Easter is the most significant holiday of the Christian year. Though we celebrate Christmas as the central holiday as far as emphasis, it is not. Without Christ's resurrection there is no Christian faith. If Jesus has not been raised, there are no Christmas celebrations to be had.