Tell me why the riddle

Tell me why,tell me why Wonder if I could open my heart again (if I could, if I could, if I could) Must be me why I feel like start again Wonder if I could open my heart again (heart again, heart again) Must be me why I feel like smile again The morning comes and the snow is falling ( x4 ) Tell me why, tell me why Tell me why, tell me why The morning comes and the snow is falling The morning comes and the snow is falling The morning comes I can understand the reason And snow the is falling (tell me why)