2. Dreaming that I dug a ravine means that I may be in trouble for some reason.
Dreaming that the ravine is bottomless may indicate that you can't undo the mistakes you made before.
4. Dreaming of rescuing relatives and friends you know from the ravine shows that you have the ability to help relatives and friends solve problems, which may help them out of trouble.
Dreaming of others digging ditches means that you may feel unable to control your own destiny and worry about the inevitable disaster, so you are worried about it.