Grandpa

When my grandpa first passed a couple years ago I used to ask him to come to me in a dream all the time. After awhile I stopped asking. Then, last night out of no where he came to me. The dream was very vivid but what I do remember I was at my childhood school and he was showing me various symbols. In my dream I was aware that he was showing me things that symbolized something just not what they actually meant. The only two things I remember for sure was a dead flower and also an alive flower. Then I dreamt that I woke up and wrote down a list of the things he had shown me. As I said the only thing I remembered was a dead and also an alive flower. Come to find out I was actually still dreaming and never wrote the things down. I had just dreamt that i had woken up after the dream to write them down. Somebody help please!!