If you dream of an abyss, it represents the barriers you are facing in your life. You should consider the things you want to do in your life and try to find out what barriers do not let you to move forward. Do not be afraid of challenges you are going to have, as you will sort everything out, you will be capable to find the solution to achieve the task. This dreams also shows that you are worrying about your future, about who you are, what you feel and what you are afraid of.
If you are dreaming that you are falling into abyss, it signifies your hidden plans for the future. The dreams also could be the meaning of your fear to start something new in your life or your fear of taking the risks.