Trimming nails is read as tidying small things that have grown too long. Folk tradition links it to self-care and to cutting back what has become sharp or careless.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.