occurs when there is match/consistency between your perceived self and your ideal self. If this occurs it enables a person to show personal growth and achieve their goals.
When there is a MISMATCH between the perceived and ideal self we are in a STATE OF INCONGRUENCE they are likely to have low self-worth and poorer psychological health.
Rogers would suggest a person should go through counselling to close the gap/discrepancy by developing a more healthy view of him/herself or a more realistic or achievable ideal self