To see a burial in your dream indicates that you have gotten rid of your bad habits and have freed yourself from a negative situation. You are finally letting go of something. 

To dream that you are burying a living person signifies emotional turmoil. Alternatively, it suggests that you are being buried by problems and stresses of your waking life.

To dream that you are being buried alive suggests that you are being undermined or stifled in some way. You are feeling trapped or helpless.