Duke Zhou: My mother dreamed that my dead grandfather's clothes were naked on me?
Reflect that your mother is very uneasy about you outside, report more good news and less worry, and subconsciously let her have a good recent situation, and it will be solved!
In your mother's mind, your grandfather was very kind to you, or it was formed by similar scenes before his death. Those snakes represent a lot of troubles and worries in your mother's heart. You have to tie the bell if you are worried.