What does it mean to tell fortune with a lock?

Master told me. Do I have a lock? What does this lock mean?

You were born with a luxury. You have been flattered by others since childhood, and you are full of feelings. It is easy to fall in love. But you are passive and lack enthusiasm, so your love will always be as sour and sweet as strawberries. As long as you are tight, your wish can come true.

Flower proverb: sweet and sour love is more attractive.