This could be the "Eve" of a promise in Jesus, fulfilled in your life. There was "a day before" Christ our greatest and best gift was born of Mary who found favor with God.
Likewise, this could be "the day before" you deliver that which the Holy Spirit has conceived in you and has purposed for you to bring forth for the glory of God.
A Christmas Prelude to the Upcoming Christmas Day Devotional on 12/25/18 on A Walk In The Garden
This post also appears at A Walk In The Garden Greetings.