Today I smiled,
Like the sunlight filtering through trees.
Yes, that word you find on Tumblr.
Komorebi.

Yesterday I laughed,
Like the one that you'd hear at a carnival.
Yes, that loud and contagious one.
Exultation.

Tomorrow I saved,
Like the heroes that you see in movies.
Yes, those strong and fearless ones.
Redamancy

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Definitions of the words:

Komorebi (木漏れ日「こもれび」) - Sunlight filtering through the trees.

Exultation - A feeling of triumphant elation or jubilation; rejoicing.

Redamancy - The act of loving the one who loves you; A love returned in full.

The song is Merry Go Round of Life (Remix) - A June & J Beat