"A Stroll Through a Dark Day" has a tranquil atmosphere, the chord at 1:21 (major tonic in minor key? I don't have much ear training but sounds like it) adds some tension and mystery, maybe anticipation? "A Walk Through the Meadows" is similar in a sense that it begins with a somewhat cozy atmosphere, the trill at 0:40 marks the change well, the second half also feels like an anticipation, the latter half sounds sinister as Jojavi noted but is still melodic, hopeful perchance? "A Run Through the End of Days" is more suppressing and sinister with the strings, choirs, and percussion, the second section sounds like a victory, although with some uncertainty (1:30, the strings also start ascending at that point building tension), the third section resolves the tension