Based on Ezekiel 36:25-27
Without the Holy Spirit this meal is useless. He unites us to Christ as he gives us faith. He makes us members of His body, sharing in Christ. That union brings all His benefits to us. We receive His righteousness; His death covers our guilt. We are justified, we are being sanctified. He seals and assures the truth of all this in our hearts. He gives us these sure and concrete signs of His Fatherly favor and kindness toward us.
The Spirit is poured out on us and He restores the years the locusts have eaten. The Spirit is the Omnipotent God, equal and power and glory to the Father and Son. And His unique work is giving life and times of refreshing, a new heart, through the Word, the waters of baptism, and this meal.
This should give us hope in the midst of any situation. God can straighten any crooked heart in your life. He can smooth out any relational wrinkle you have. So this meal not only looks back to the cross; it also leans into the future, to the time when Jesus comes to judge the world with equity, and set all things right, when He drinks of this cup with us in His Kingdom.