Grey Chain in dreams
A strong connection — sometimes wanted, sometimes restraining.
How grey changes the reading
Grey colour layers ambiguity onto the symbol. The base meaning is still there, but the dream is saying you do not yet have the colour information — the situation has not declared itself.
The base reading of Chain
A chain in a dream is the dictionary's image of a strong connection. The reading depends on whether the chain is wanted: a chain on a door is protection; a chain on your wrist is the dictionary's image of a tie you no longer want.
Where you often see it. A chain that links two objects. A chain around a wrist. The dream uses the chain for a strong connection — sometimes wanted, sometimes restraining.
What it is not. A chain is not always restraint. The dictionary reads it as connection in its sturdy form.
Related in the dictionary. Read chain with rope (the softer cousin), ring (the closed circle), and any scene of binding.