I am a positive person but I get really tired of aggressive optimism. If someone’s sad, let them be sad. All emotions have purpose. Sadness isn’t destructive if not prolonged. Sadness isn’t unproductive, as it offers awareness. Telling someone to “cheer up” or “be happy” is so ineffective and patronizing. The last thing a sad person needs is for someone to judge their feelings as pointless and unappealing. Welcome sadness, just don’t let it consume you.