How present moment is complete?

When we live the present moment, where are other people who are not with us in the present moment, those people who we miss or wished their company at this moment.

How a present moment is considered complete or enough when we are missing someone or some place so much and its impossible to be available in the present moment except as a thought which makes the present moment more painful or unsatisfactory, to v the extent that it feels more comfortable at this moment to visualize something else other than the present moment in hope that you will be reaching that person or place at sometime soon, may be tomorrow or after ... etc ... just as a temporary hope I know.

How this can be c explained ..if its corrupted I know .. how should this be approached to avoid more suffer.