Our Lord’s request to eat grilled fish is meant to convince the disciples of two things:
First – he is not a ghost – ghost’s don’t eat fish!
Second – It is a familiar action – they are fishermen and he often went fishing with them.
These post resurrection episodes, Doubting Thomas, Emmaus disciples – breaking of bread, eating grilled fish, all
point to a Risen and Glorified Jesus not limited by space and time but living in the eternal now.
The Risen Christ is with us NOW !