This work is about questioning how photography can provide to the act of keeping. I selected the pictures of moments that are physically hard to keep them such as waves and light. Their forms constantly change and which may not emerge in a same shape again. I printed into the size of 15cm x 10cm to remind the moment of buying the postcard at the gift shop. After appreciating the exhibition at the gallery or museum, why we felt want to keep them? or is it to share with someone?