Veins carry life back to the heart, so tradition reads them as the channels of energy and feeling. Visible or swollen veins mirror strain or emotions close to the surface.
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.