Album version 4:19 Instrumental/Vocalisation 1995

Liner notes

ENIA in Ogham (A Box of Dreams)

In ancient Celtic belief trees had spirits within them and were considered sacred. They were the keepers of memory and lore. The Druids, the men of knowledge, used to record their wisdoms by means of a secret alphabet called Ogham, which is also called the "Tree Alphabet". Ogham is named after the God Ogma, the God of poetry and eloquence. Thus the memory of trees looks into the past.
The future we look at may give us another interpretation of the title, with the destruction of the world’s rainforests it may turn out to be that the memory of trees is nothing more than that for us – a memory.
notes by Roma Ryan
Only Time: The Collection, 2002

Quotes about the song

Enya: Roma was the one who suggested the title, The Memory of Trees. That inspired me to write the title track about two weeks later. Usually, most of the melodies were first to the title and lyric. The Memory of Trees is based on Irish mythology and relates to the Druids who hold the trees as sacred.
Enya & The Memory of Trees, Gavin, 1996
enyabookofdays.com