What the image shows
A queen sits on a stone throne at the edge of water, holding a covered cup that is far more ornate than any other vessel in the suit. It is built like a church, with handles shaped as angels and a lid. Her feet rest on coloured pebbles, and the water comes right up to the throne without touching her.
Two details carry the reading. The cup is the only closed one in the suit, so whatever it holds is not on display. And she is looking at it rather than at the viewer or the sea, which readers take as attention turned inward on something being held rather than offered. The throne at the waterline is usually read as position taken at the boundary of the element, close to it and not in it.
Upright and reversed
Upright, the reading is someone who understands people accurately and acts on it. Empathy, intuition and care are the keywords, and the first of them means perception rather than sympathy. The tradition does not describe a person who feels a great deal. It describes a person who reads a room correctly and then does something with what they have read, which is a different and rarer thing.
Reversed, the usual reading is empathy that has stopped distinguishing self from other. That appears in two forms. One is overwhelm and enmeshment, where another person's state is taken on as though it were your own. The other is withdrawal, the same capacity shut down because it was costing too much. Look for cards about other people to point at the first, and cards about isolation or refusal to point at the second.
Queens, and what water adds
The court of four ends each suit, and the queen is conventionally read as the element held inwardly rather than applied outwardly. Where the king in the same suit decides and the knight moves, the queen contains. That is a convention of the deck rather than a claim about women, and readers uncomfortable with the gendering commonly read the courts as ways of holding an element instead.
Cups carry water, taken as feeling, attachment and what people are to each other. Water held inwardly is therefore feeling that has been absorbed and understood rather than expressed. No astrological correspondence is given for this card in the data used here, only the suit element, which is the ordinary arrangement for court cards. Position in the court and the element between them carry everything the card is read as saying.
The question it puts
The prompt this card carries is unusually sharp for a card read as gentle. Whose feeling are you actually holding, and did anybody hand it to you. Accurate understanding of other people has a running cost, and the tradition puts that cost in the reversal rather than pretending it does not exist.
A reading on this site is a structured way of asking yourself something, not a source of information about the future. The card does not say whether the person you are carrying deserves it. It marks the line between you and them and asks whether you can still see it. That is a question you can answer in the morning, without the card.
Questions people ask about this
What does the Queen of Cups mean upright?
Someone who understands people accurately and acts on that understanding. Empathy, intuition and care are the keywords, with empathy meaning perception rather than simple sympathy.
What does the Queen of Cups mean reversed?
Empathy that has stopped distinguishing self from other. It shows either as overwhelm and enmeshment or as withdrawal, the same capacity shut down. The surrounding cards indicate which.
Why is her cup closed?
It is the only lidded vessel in the suit, which readers take as something held rather than displayed. She is also looking at it instead of outward, so attention is turned in on what is being carried.
Is the Queen of Cups about being nice?
No, and reading her that way loses the card. The tradition describes accuracy about people, which is a capability. Kindness may follow from it, but the card is about reading a situation correctly.
Which sign rules the Queen of Cups?
None in the data used on this site, which gives water as the element and no sign or planet. Court cards here take their meaning from position in the suit rather than from a sky correspondence.
How does she differ from the King of Cups?
The convention has the queen holding the element inwardly and the king applying it in the world. Both are read as fluent with feeling, and the difference is whether it is contained or used outwardly.