Celtic and Gaelic traditions

What is it I am looking for? 
I am interested in the representational way that gods and goddesses are represented in folk culture - the green man, the connection and representation of this with the earth. I don't know the words for it at the moment, but it feels like a ghosting, an imagined, not greek, or roman, nor is it budhism and Asian, it feels like it is more linked to those cultures that have a deep connection with the earth. 
Maybe it is rooted in my soul. It draws me back adn has been bugging me for days, a kind of primal, not a worship more like the protectors of the natural resources. 
MMM...

is it symbolism, if so what is it 
Tree of Life - Elder, cedar of lebanon, Oak, different cultures different traditions. YYgdrasil - norse 

Is it fairies? 
Google search : goddesses and folk of the seasons and nature
https://en.wikipedia.org/wiki/List_of_nature_deities

Then english folklore 
https://en.wikipedia.org/wiki/English_folklore
https://en.wikipedia.org/wiki/Father_Time
https://en.wikipedia.org/wiki/Mother_Nature
https://en.wikipedia.org/wiki/Earth_goddess
​