Pink crystal, also called love stone, can be given to your lover at ordinary times, indicating how important the other person is in your heart, and nothing can replace it. It is also a real angel, and it also symbolizes peace and health.
Guardianship itself is a kind of amulet. People use it to ward off evil spirits and contact bad luck, and then slowly derive other functions such as praying for smooth study, concluding marriage and blessing peace.