character 

character

Not perfect, but one goes through so many changes til they get this bit of sand in the shell, it builds up and develops a pearl, a pearl is a good thing, but the pain of going through the discomfort of that grain of sand being in your shell, brings discomfort. But a pearl cannot stay in a shell forever, The oyster has to be cut open and the peart released from misery of being entrapped in a ugly shell.