Despite the scornful comments which this post will doubtless engender, from those who (understandably) believe what they have been taught, that gravity cannot be used to drive Bessler's wheel, - and indeed see no convenient loophole which could accommodate my suggestion which follows - I remain convinced that Johann Bessler found a workaround that allowed him to do just that. I will try to explain why, so please read on.
This dream seem to have confirmed something he was considering, and the end result was success. So what could have so inspired him to contimue his research with so much confidence?
We know that he was aware of the wall of scepticism around him, but was he aware of exactly why he was not believed? Why gravity was utterly rejected as a potential sole power source? He made his discovery before he became notorious and it is likely that he succeeded because he did not know in those early days, why it was impossible!