Koliva is boiled wheat shared at Orthodox memorial services, so a dream of it is read as remembrance and keeping a bond with those who are gone — a symbol of honouring the past, not a sign of loss to come.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.