it means "Eternal flame"
Eien - song - was created on 1997-08-20.
Eien - album - was created on 1999-02-17.
Kitto Eien ni was created in 2006.
Eien no Uta was created on 2007-10-03.
Eien no Tsubasa was created on 2007-05-09.
Kimi ga Nozomu Eien happened in 2001.
Kimi ga Nozomu Eien was created on 2001-08-03.
Hana to Yume was created in 1974.
Yume Bitsu ended in 2002.
Yume Bitsu was created in 1995.
The Hana to Yume was created in 1999.