I feel this song is about being madly in love with someone and knowing you can't be with them except in your dream. "People and rhythm instead.. And there you’ll be there you’ll be inside my head": The love she feels is so strong that the person she has a crush on is in her head wherever she goes even when she is surrounded by music, it sounds dull and even with people around she feels lonely without that person she longs for..
The next part is about how you wish the other person would also dream about you the same way and how it would feel to finally be with them. She knows it's a mistake and she wants to get away from this fantasy but is in too deep a love.
I feel this song is about being madly in love with someone and knowing you can't be with them except in your dream. "People and rhythm instead.. And there you’ll be there you’ll be inside my head": The love she feels is so strong that the person she has a crush on is in her head wherever she goes even when she is surrounded by music, it sounds dull and even with people around she feels lonely without that person she longs for..
The next part is about how you wish the other person would also dream about you the same way and how it would feel to finally be with them. She knows it's a mistake and she wants to get away from this fantasy but is in too deep a love.