Already in the Book of Genesis we are introduced to the priesthood of Melchizedek, with his gifts of bread and wine. Bread and wine became part of covenant celebrations in the Old Testament. The energies they produce in the human body are symbolic of the energies that are produced by a covenant mutually agreed to. When two people agree to a covenant relationship, they are then free to use their energies for things other than attacking each other. In short, they are at peace with one another.
Pentecost belongs to sinners only! Pentecost is neither for the angels nor for the saints. They do not need it; we sinners do. Every day every sinner is confronted with an inner rebellion. There are no exceptions! We all have a choice to follow our human spirit, the Evil Spirit or the Holy Spirit; all too often we follow the human spirit and sometimes the Evil Spirit.