What it means
In Jyotish the Moon is the mind. Its condition at birth says how a person takes in stress, noise and other people's moods.
Two placements count as strong here. The Moon in Cancer is in its own sign, so it is at home. The Moon in Taurus is exalted, which the classical texts treat as its most comfortable seat. A Moon in either place is read as an even temper: slower to panic, quicker to settle, hard to push around emotionally.
About 1 chart in 6 passes. If yours does, think about how you behave in a bad week. If yours does not, that is no flaw. A Moon in another sign works in a different way, that is all.
This is a reading from tradition, not a promise. Test it on someone you know well. Does the label fit?