What does it mean to tell fortune by putting water in a bowl?

What do you mean by putting water and needles in a bowl?

Putting water and needles in a bowl is a traditional custom of Valentine's Day in China, which is called "putting needles to test skills". This custom originated from the variation of needlework custom prevailing in Ming and Qing Dynasties. People predict originality by putting a bunch of needles into water and then observing the patterns in the water. The better the shape of the pattern, the more dexterous the hand of the needle holder.