Dreaming of returning to the original unit may be your longing for the stable job you once had, or it may be because you have encountered many difficulties at work and have to come back to deal with it. This dream may also remind you that something happened in your past job that you need to deal with, or that you need to go back and find yourself again.
Whatever the reason, you can first think about whether your current work situation really needs to be changed. If so, then you need to take measures to find better job opportunities or find yourself again. If not, then you need to learn to adapt to the current working environment, actively face the problems you encounter, learn to grow from it and gain experience and knowledge. Most importantly, you need to cherish the present opportunities and happiness, and don't dwell on past memories.