Recurring dreams show your strong feelings and desires.
I always dream about my sister. Maybe you miss her so much recently.
In addition, when I encounter difficulties, grievances and troubles in my life, I always dream of my dead relatives.
Feeling helpless inside, I hope to get comfort and blessing.
Because my sister must have loved and protected you.
So, you will always dream about her, and you hope to dream about her every day, because you miss her so much.