Of course, if you give your candy to someone else, it means that you will end a relationship and start a new one.
In addition, if your grandfather gives you pocket money or something related to the economy, then you may have excellent fortune. In terms of contact, there is also a possibility that you or your close relatives may make a fortune in the near future, but pay attention to proper distribution, otherwise conflicts will easily arise.
Generally, dreaming of my grandfather means that my family will be protected and helped by Yin De. This dream is a good omen and should be undoubtedly just. It's just that your description is not specific and detailed enough to draw a conclusion.