Psychological / emotional perspective: In dreams, the hag is variously the cantankerous old woman or that aspect of femininity that aspires to use intuition and understanding for the benefit of her community.
If the former, we need to come to terms with what appears to make her cantankerous in the dream – pain or disillusionment perhaps.
If the latter, then the greek goddess hecate, as keeper of the crossroads, is worth studying.... Dream Meanings of Versatile
Gives gender - specific: In a woman’s dream the hag will manifest either as mentor and friend or as a judgemental personality. In a man’s dream she will tend to be more of a figure of fear. In the hero’s journey he must overcome his fear and gain her blessing. Consult the entries for goddess / goddesses and witch for further clarification.... Dream Meanings of Versatile
To see a haggard face in your dreams denotes you will meet with defeat in your love affair or it may promise business losses. Your own face appearing haggard may mean you are in for a bout of ill health for yourself, or the ill health of a business enterprise. Your haggard face and a feeling of being tired means you should slow down and rest before illness strikes.... Encyclopedia of Dreams
To dream of finding a hagstone indicates a charmed or lucky person. Holding a hagstone in your hands suggests a great deal of power is currently at your disposal.
To dream of throwing a hagstone is a message to think positively as you may lack of personal empowerment. Literally, to dream of a seeing a hagstone in the distance may be indicating that it is time to get your eyes checked.
To find a hagstone in water indicates the power to recover from a recent emotional trauma. On the whole a hagstone in a dream is a fortunate omen.... Dream Symbols and Analysis