Close the Gap
Fundamental to [Calvin's] thinking about the Supper is the outworking of the correlation between Christ ascending and the Spirit descending. The Spirit descends in order to raise us up into fellowship with Christ (cf. Col. 3:1-4). Similarly, in the Supper, the Spirit comes to ‘close the gap’ as it were between Christ in heaven and the believer on earth, and to give communion with the exalted Saviour.
Sinclair Ferguson, The Holy Spirit, ed. Gerald Bray, Contours of Christian Theology (Downers Grove, IL: InterVarsity Press, 1996), 203.