I dreamed of falling into the water last night. There are many algae in the water.

Dreaming of falling into the water shows that life has fluctuated greatly recently, so don't worry.

Dreaming that you fell into the sea means that there is something wrong with your interpersonal relationship and you don't want to trust people around you.

Dreaming that I fell into the river shows that life has changed a lot and I dare not face life.

Dreaming of tangled clusters of seaweed means that you may be forced by some force or influence to do something contrary to your position and viewpoint, which makes you feel puzzled involuntarily.

The above is taken from Duke Zhou.