Lyric discussion by robsturr 

Cover art for Lionheart lyrics by Blind Guardian

I could see how this could be about Roland's journey beneath Lud.

"Speak to me It all would be easier I want to talk to you"

Could be Roland wanting to communicate with Oy as they followed the trail of Gasher and Jake.

I guess maybe Jake would be the "Lionheart" that the song refers to.

"Drown here in the silence" is probably referring to what would happen if Oy lost Jake's scent beneath Lud, how Roland would be stranded in complete darkness and silence.

There are some references from the Odyssey in this song that don't really connect with The Dark Tower.