To hear or make an echo in your dream symbolizes your need to repeat yourself in order to be heard and for others to believe you.

Pay attention to the power and impact of your own words.

You are waiting and hoping for a reaction from those around you. It is also symbolic of the soul.

Alternatively, to hear your own voice echo indicates that someone is mocking you.

Or it could mean that your past actions will come back to haunt you. You need to confront those old memories and past issues.