If you dreamed of Sealing an Envelope: Current developments mean that the basis of your relationships will change, you should be prepared, You may experience changes in your bilateral relations. To see that the envelope is sealed in a dream indicates that a news that the dreamer knows but does not want to be heard will be heard by everyone, and the person will experience great sadness and disappointment due to this news.
To see that you put something in the envelope and seal it because you do not want it to be opened later in your dream generally means that you will hear a news that you know and do not want to be heard, and you will experience great sadness because of this situation.