Visualise and see energy cords attached to your body which are extended from people in your life. Tell yourself and imagine removing unnecessary energy cords from your body, then imagine bright lights filling up the void after removing the cord. Unnecessary attachments are ones that you wish to detach emotionally, psychologically and physiologically such as past relationships.
Necessary attachment cords are those which are wish to mend or maintain relationships with. Visualise and tell yourself these necessary energy cords are to be healed. Personally I would see the cords glowing green signifying healing.