The Druids of very very old I believed tuned Ritual to the needs and guidance of the Human Tribes them found them self's incarnate in.
Ancient knowledge of Gods otherkin and the Astral Worlds has not changed really but the Names Tools and Framework have very much so.
We now live in a man made ferromagnetic world. Where Iron Steel and man generated electromagnetic energy has our world in its RF and magnetic Fog.
So both how we access the old ways, an old energies, often may have to also change. As well as what energetic cosmic tides we try and use or ride.
A focus on what is needed now and into our future should be our road maps.
Why we answer the Ancient Oak's (Druid) Call. And also how we answer the " Four Great Questions" of a true Druid Priest (as I see it).
1) Who / What will you Honor?
2) Who / What will you Serve ?
3) Who / What would you Kill For ?
4) Who / What will you Die For?