Insight as a parent of a young adult is important to have to accurately meet the needs of the child and prepare he or she for adulthood.
Insight is knowing parental responsibilities and the needs of the child.
Open and willing communication is key to continue a healthy bond and establish trust. A willingness to learn new ways of communication is necessary.
Communication through body language, looks, and attitude is just as important as verbal words. A parent's ability to "read" his or her child is an advantage to knowing the child better. Also, remember the young adult is always watching the parent as well.
Communicate with respect and a willingness to listen.