The song "Yesterday" by Gareth Emery & Nash portrays a sense of reflection and moving on from the past. The lyrics speak of walking out in the cold night, feeling a sense of distance and being unable to rectify past mistakes. However, despite this, the world feels bright and full of possibilities, yet deceptive and uncertain. The protagonist acknowledges that they have found themselves in a similar situation before, on another day and in another place. They are heading home, indicating a desire for stability and familiarity. The line "And nothing's as it seems" shows the ambiguity and unpredictability of life. The chorus emphasizes the power of words in creating a barrier between the outside world and the speaker. They believe that by speaking certain words, they can keep the world at bay. When the crowds fade and everything becomes dull and unimportant, they are able to walk away, leaving the past behind. The repetition of the line "We'll walk away from yesterday" reinforces the idea of letting go and moving forward. It suggests a determination to leave behind the mistakes, regrets, and pain of the past and focus on the future. Ultimately, "Yesterday" conveys a message of resilience, acknowledging the challenges of life while maintaining a hopeful perspective. It encourages embracing change, leaving the past behind, and finding strength in moving forward.