To dream of a plague will highlight some internal imbalance within ourselves. This may be physical, emotional, mental or spiritual. One quality of a plague, no matter what it is, is that there is too much. We can be overwhelmed by it, as happened with the plague of locusts chronicled in the Bible.
2- One outstanding example of a plague in the Bible was that of Job who was plagued by boils. This suggests the old-fashioned idea that if one did not conform, retribution would occur.
To dream of a plague, therefore, is to recognise that we will suffer if we do not attempt to reach our highest potential.
3- In spiritual terms a plague signifies Divine Retribution.