A bathroom represents your need for comfort, security and privacy, with privacy being the main aspect in focus. Instead of being naked, you wish to be covered. This can literally signal purity and a pure state of mind, body, and spirit or being; or it could refer to your desire for personal comfort and protection. The bathrobe is a symbol of something protecting you.
Of course, there is also a strong link to water and washing here, or, more specifically, cleansing. A bathrobe is associated with bathing or showering, and therefore the message is cleansing yourself and entering a pure and godly state of mind, health, and being.
