If one sees drinking milk in a dream, it implies “knowledge”.
Source : Sahih Muslim 2391 a, In-book reference : Book 44, Hadith 21
The Prophet (ﷺ) said, While I was asleep I saw (in a dream) a cup containing milk being presented to me. I took out of that until I perceived freshness being reflected through my nails. Then I presented the leftover to 'Umar b. Khattab. They said: Allah's Messenger: How do you interpret it? He said: This implies knowledge.
Disclaimer
If you really would want to know the interpretation of dreams, ask an expert who has the knowledge. The internet is only going to give you false understanding of your dream.
Interpretation of dreams is meant to bring glad tidings and news, and not to feel depressed once you read an Interpretation. There is a lot of false information on the internet when I tried to search for a meaning of my dream. I am in no capacity an expert in interpretation of dreams and the following interpretations have only been organized by me from two different sources.
The source I have used here is the authentic Hadith that matches the subject of seeing a dream of drinking Milk.
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