The major feast of Pentecost—in Greek, Πεντηκοστή which literally means the “fiftieth day”—commemorates the day on which the Holy Spirit, as a mighty wind, descended upon the disciples (cf. Acts 2), as Christ had promised during his earthly life (cf. Jn 14:26; 15:26), resting upon them in the form of tongues of fire (cf. Acts 2:3).  In…