# stars

The seven starts represent the angels of the seven churches” or “The seven stars are a symbol of the angels of the seven churches.

# the angels of the seven churches

Possible meanings are that these "angels" are 1) heavenly angels who protect the seven churches or 2) human messengers to the seven churches.

# seven churches

This refers to seven churches that actually existed in Asia Minor at that time. See how you translated this in Revelation 1:11.