In one of my classes this semester (all about the Book of Common Prayer!), my professor had us all write a collect. Here’s mine, in the spirit of advent:
Almighty and ever-loving God, who partnered with Mary in the joyful delivery of your Son as a human baby, grant us an awareness of your Creative Spirit, that we might join with you and one another in your redemptive work on earth, as members of your kingdom, through Christ our Lord, who lives and reigns with you and the Holy Spirit, one God, now and forever. Amen.