Select the most appropriate word for the given group of words.

A sentimental longing or wistful affection for a period in the past

Nostalgia

The most appropriate word for the given group of words is nostalgia.

• Nostalgia is a sentimental longing or wistful affection for a period in the past.
• Paradise is a place of perfect happiness.
• Recollection is the act of recalling something from the past.
• Harmony is a pleasing combination of sounds.