It is also believed to improve concentration and analytical frames of mind, as well as releasing traumas and providing the courage to trust. For proponents of energy work and crystal healing, white agate is believed to be beneficial for mental issues, including everyday challenges such as frustration and anxiety.Healing with Agate. It cleanses and stabilises the aura, eliminating and transforming negativity. Agate enhances mental function, improving concentration, perception and analytical abilities. It soothes and calms, healing inner anger or tension and creates a sense of security and safety.