it means that the person you are walking with is not the right person for you.
A waterfall happens when a flow of water suddenly drops to a lower level.
windy weather
Stroke.
By drinking rain drops of the leaves
It is where the follwer slowly rises then suddenly drops. These are used in car engines, in the pistons.
This is probably a anxiety dream. Do you feel you have been "steering" your life along and suddenly everything you relied on has fallen away as if beneath you, so there is a fear of failing or not having the support you need? This is only one of various possibilities, but only you can figure out what it may mean as pertains to your own situation in life, or with regard to an experience you may have had during the day you had the dream. Journaling your dreams may just help you find the unique way your brain brings issues to your conscious mind.
Scarlet fever. When it suddenly drops you could loes sight and hearing.
Smooth muscles constrict veins when blood pressure suddenly drops. These types of muscles are the non striated, involuntary muscles found in blood vessels, veins, arteries, the uterus, the bladder, and reproductive tracts.
This is a dream generated by healthy hormones with very slightly sublimated sexual images.
Because of one point is fall to the earth.
walk because you will be in the rain or whatever water source for longer.
A person who drops litter.