I absolutely adore this song, I find it a very emotional, and uplifting one at that! Having see videos of it live, it feels it has a much meer impact to me than listening to the album version of it, making me want to cry.
To me, it feels like they are pleading for love and asking to lead their lover to the right way, hence "And I'll walk slow, I'll walk slow. Take my hand, I'll be on my way." and this has the biggest impact on me within the whole of the song.
Marcus' vocals in this song are powerful nearer the end, and bring the uplifting to it's edge. Along with the instruments playing along-side him, makes it feel meer emotional and that is why I adore this song, so, so much.
Thanks.