Cities in the Astral

A very short DILD. I was staanding around in a dream and looked into my hands. I was holding a bead string. I saw that it broke and beads started falling. However, they were falling into darkness. Nothing was around other than me. I did my gravity RC and started levitating. I became lucid annd levitated around in the dark for a minute, but at that point I lost my recall. My job has been a big stress and is affecting my dreams.