"
Far away, I can hear your prayer
And I know it means goodbye
Far away, nothing I can say
On the last day of my life
Far away, I can hear your prayer, and I know it means goodbye. This is showing that he knows people are waiting for him back home, that he, perhaps even, has a family awaiting his return. They're praying for it safely on the surface, but deep down they know that war is cruel, and he is like to die.
Far away, nothing I can say, on the last day of my life. He comprehends the situation he is in, and is speechless of it. He has been sent to war, and knows little to nothing of it other than the fact that people die during war. He is accepting his fate, albeit hesitantly as he is but a pawn to the generals that are, more or less, ordering him to die.