The milk jug is linked to nourishment and the gentle care of early life. Dream books read pouring from it as giving comfort, and a spilled one as worry over care that did not reach its place.
Where in your waking life have you met something like this lately?
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.