Golden Key in Empty Bank: Clocks & Repressed Meaning & Interpretation

"I dreamed I walked into a large bank. The room was quiet, and no customers were there. I walked to the counter and gave the teller my name. She looked at me and gave me a small golden key. I asked what it was for, but she said nothing. I walked to the back of the bank and found a large vault. The key opened the vault, but there was no money inside. Instead, I saw hundreds of clocks on the walls. All the clocks showed the same time. Then one clock started ticking backward. I felt confused. Suddenly, all the clocks stopped. Then I woke up."