What do you mean by "you can get water from the beach alone"?

People leave the beach as smoothly as ducks get into the water. This sentence is often used to weigh stocks, and the person who draws lots will be out smoothly. The full text is: the arc boat gets the beach water, leaving home early, right or wrong doesn't matter, marriage matches the purple house. The full text means that people who draw lots leave the beach like a duck to water and go out to earn money before getting married; It doesn't matter what others say, right or wrong, and it doesn't hinder. Marriage is suitable for people with superior family circumstances. Wei Zi's family refers to a prominent family. In the past, Wei Zi was a royal family and Wei Zi Palace was a royal palace.