This dream may symbolize a desire to reconnect with family members who have been absent from your life. Your niece, who represents a younger generation, brings with her a new addition to the family, symbolizing growth and change. Your two eldest daughters may represent your own children or aspects of yourself. The relaxed and enjoyable atmosphere suggests a sense of harmony and contentment in your relationships. However, the mention of your cousin going to jail may represent unresolved issues or conflicts within the family that are causing tension and disrupting the peace. This could also symbolize a fear of losing a family member or a sense of guilt for not being able to prevent their troubles. Overall, this dream may be urging you to address any underlying issues and work towards reconciliation and healing within your family relationships.