Just asking the mind to come to the present may not be a workable long-term technique to actually bring it to the present as there can be hidden reasons for the background activities taking place in the mind. For example, many times mind works in the background when it is searching for some answers. This act by unconscious mind makes us unavailable to the present moment. When the answer to the search suddenly appears, mind relaxes and becomes quite. There can be a rush of joy as well (bliss) in this state and the mind comes to the present.