Everything is perfect on a beautiful day: the right time, the right place, the right people and everything.
Getting this sign is a big deal: it is not easy to get this sign.
People who are loyal to the emperor declare loyalty, righteousness and filial piety, which can be reused by the country in the future.
The above is a literal translation. It is suggested to accumulate more virtues and do good deeds, be filial and respect teachers, and have a bright and auspicious future.
However, these are commonly used ambiguous sermons. If Guanyin can really know what's going on in the world, it's really a fairy. Don't be persistent, just take it as an encouragement. Fate is the most important thing.