Dreaming of the crematorium, many people in mourning cried, facing south. Ask the master to tell me what's going on. . I am so scared that I want to cry.

My personal opinion that "many people cry to avoid facing south" shows that your mother has recently been under pressure from others, which should be brought about by their pleading and urgent attitude. Such people are generally people with good relationships at ordinary times. The statement that "something flows into the neighbor's house, but the water is brought back" is a bit vague. In my understanding, this means that your mother has the idea of letting others share some pressure. But if you are worried, or don't believe that others can be competent or handle it properly, you dream of your uncle, that is, his brother, which shows that your mother thought of her brother when facing problems and troubles, just like your mother said, if only her brother were here. To sum up, your mother met some difficult things, such as relatives or friends in trouble, and asked your mother for help. Your mother feels nervous herself, trying to convince everyone who asks for help. Being so young, you should be more sensible recently. Maybe you can't give her any help, but you should let her feel the spiritual support of her family. This will be very important to her at this time.