To dream of a sink represents preoccupation with finishing some aspect of your life. Noticing yourself getting rid of ideas, feelings, plans, or situations. Wanting or choosing to end a way of thinking or living.
To dream of a kitchen sink is often symbolizes preparation to finish or get rid of some area of your life. Often an intuitive symbol for a change of thinking that is almost upon you. You are planning or about to feel that it's a good idea to change.
Example: A man dreamed of seeing dishes being washed in a sink. In waking life he was realizing that it may be a good idea to stop desiring a girl he liked.
Example 2: A woman dreamed of a sink overflowing. In waking life she was experiencing an unusually heavy menstrual cycle. The dream most likely reflected her frustrations with being unable to control or end her period.
*Please See Sinking