Alice/Animaterra. There are a few words in the song that are difficult to relate to a lullaby. I suspect they may have a hidden meaning so I have sent a request to my relative to look for some local folklore books that may explain them. From my knowledge of the Irish language I came up with the following possible explanations. If and when I get the correct meaning I will surely let you know.

Aoibheall - (aoibheall means gamboling or it could have something to do with Aoibh = smile ?

Green Man's Thorn - Could be a hill, mountain or place ?

Siabhra ? - I know that siabhra means delusion but not clear about the meaning of siabhra in the song ?

Starry Bog - may be the sky

Tearman ?( tearman = asylum/ reservation or sanctuary )

Would appreciate any other explanations .

Whatever the meaning, this is one beautiful lullaby.