This dream is a reflection of inner feelings and thoughts.
The semi-closed pipe is the environment where you live now. You are controlled, and you must work hard in one direction. Closed space means that you don't like the acceptance of this environment and lifestyle, and you feel depressed, not free and clear.
Bending, twisting, and falling boulders are all kinds of unexpected problems you face. Although you were under great pressure and worked hard, you completed the task and saved yourself.
Being aloof from the cold and unknown means that you are physically and mentally exhausted from this life, feel that there is not much value, and your heart is a little dim, lacking vitality and hope, and confused.
Bless you.
Please adopt it if it helps.