Seeing your spouse's sister in a dream indicates that you will do things that everyone will applaud, you will argue with your family members for a reason, the work done will not bring much profit, you will get rid of your troubles and problems and take a deep breath, your troubles will end with God's permission, the necessary support will be given in the work of a loved one, things that go wrong will be fixed.
Also, seeing your spouse's sister in a dream indicates that you will sign very good works and make great profits, you will come into your hands with a very large amount of money at a time you least expect it and you will use this money for good works, you will be very successful by regaining the former importance of something that had previously lost its value for you, you will have a beautiful and prosperous future and you will continue your life without problems, your business will always work, the problems you experience will end and more resounding works will be done with every step you take.
Psychologically, seeing your spouse's sister in a dream means that the available opportunities will increase, the results of an action taken unconsciously will be corrected, you will jump a ladder, you will fix a situation that brings trouble, you will support a loved one in terms of help, you will enter auspicious paths, you will enter a financially weak period.