love this prayer from the midday office today, the concluding prayer of the church (originally found in the liturgy of the hours, volume III):
God of mercy,
this midday moment of rest
is your welcome gift.
Bless the work we have begun,
and make good its defects
and let us finish it in a way that pleases you.
Grant this through Christ our Lord.
and this just in from the "for what it's worth" department. the root of the word "liturgy" is perhaps best translated "the work of the people." I like the idea that rest is in some sense part of the work of God's people.