Secrets are dangerous. They are used to hide the truth. Whether they're used to protect or hurt. The intent will determine whether protection or harm will occur. However, this, is not absolute.
Some may see a secret as a means to protect one from pain and agony, the truth may behold.
Yet, who and how does one decide what secrets to keep. Secrets move forth and compound as so does time.
One who is kept from the truth, may experience compounded pain and agony due to the lack of knowledge of the truth, so they may understand the whole truth, is absent.