I have visited my parents' grave as well as my grandfathers' . Not often, but it is always a moment to reflect on how fortunate I have been.
At random times I have found myself just silently saying, "Thank you " to either my Father or Mother, when something triggers a memory of life lessons learned from them ( or they forgave)
These days I try to get together with my remaining siblings when I can. It's easier to carry on a conversation that way.