{{Lyrics
| group         =[[Riverside]]
| group_en      =Riverside
| titlejp       =いと儚き燿の如く
| titlerom      =ito hakanaki hikari no gotoku
| titleen       =Like a Momentary Brightness
| length        =04:10
| arranger      =_yoc.
| lyricist      =
| vocalist      ={{秣本 瑳羅}}
| other_staff   =
| source        =
*original title: {{lang|ja|年中夢中の好奇心}}
*source: {{FW}}
| eng_only      =
| untranscribed =
| unromanized   =
| untranslated  =
| album1        ={{LyricAlbum|metamorphoXIs|RSCD-0011.jpg}}


| kan1= 
地平を覆い隠す　澄み渡る白銀（ぎん）の静寂
凍える羽を休め　静かに呼ぶ声
振り向けば　そこに――――
| kan2=
世を映す水面さえ　静かに凍りゆく
手を伸ばす　触れる肩求め合う
| kan3=
色褪せる心の影を　そっと抱いてくれますか？
暖かく燃え盛る　沈みゆく陽のように
いざ響け響け果てまで　この想い紡ぎ行け
輝ける塵の数だけ　魂（いのち）は詠う
| kan4=
暦は巡り巡る　刻んだ足跡
気が付けば　遠く――――
| kan5=
風光る蝶は舞う　溶けゆく名残雪
言の葉を紡ぐは春告精
| kan6=
降り頻る桜（はる）の涙も　きっと輝くのでしょう
夜の闇を包み込む　朧の月のように
いざ謡え謡え目映く　溢れる想い乗せて
静かなる今宵の空へ　絆よ浮かべ
| kan7=
霞みゆく君の調べは　いつか消え逝くのですか？
探しては見失う　流るる星のように
| kan8=
いざ響け響け果てまで　この想い紡ぎ行け
降り注ぐ奇跡のように　耀（ひかり）よ届け
| rom1=
jihei wo ooikakusu sumiwataru gin no seijaku
kogoeru hane wo yasume shizuka ni yobukoe
furimukeba soko ni
| rom2=
yo wo utsusu minamo sae shizukani koori yuku
te wo nobasu fureru kata motome au
| rom3=
iroaseru kokoro no kage wo sotto daitekuremasu ka?
atatakaku moesakaru shizumi yuku hi no you ni
iza hibike hibike hate made kono omoi tsumugi yuke
kagayakeru chiri no kazu dake inochi wa utau
| rom4=
koyomi wa meguri meguru kizanda ashiato
ki ga tsukeba tooku
| rom5=
kazehikaru chou wa mau toke yuku nagoriyuki
koto no ha wo tsumugu wa haru tsuge sei
| rom6=
furishikiru haru no namida mo kitto kagayaku no deshou
yoru no yami wo tsutsumikomu oboro no tsuki no you ni
iza utae utae mabayuku afureru omoi nosete
shizuka naru koyoi no sora e kizuna yo ukabe
| rom7=
kasumi yuku kimi no shirabe wa itsuka kie yuku no desu ka?
sagashite wa miushinau nagaruru hoshi no you ni
| rom8=
iza hibike hibike hate made kono omoi tsumugi yuke
furisosogu kiseki no you ni hikari yo todoke

| eng1= 
A serene, white silence covers up the horizon
Resting my freezing wings, a soft voice calls
I turn around, and there I see――――
| eng2=
Even the water reflecting the world freezes silently
Reaching out a hand, we long for our shoulders to touch
| eng3=
Could you perhaps embrace my heart’s fading shadow?
With a warmth so fiery, like the setting sun
It will now echo, to the end, forming these emotions
Only those of shining dust sing with their spirits
| eng4=
The calendar turns and turns, footprints were left
As I realised, there in the distance――――
| eng5=
Vernal butterflies dance and the last snow melts
Bringing the words, is the fairy announcing spring
| eng6=
The raining tears of spring’s blossom surely shine too
Concealing the night’s darkness, like the hazy moon
Now we’ll sing, brilliantly, sending out overflowing emotions
Into this night’s silent sky, may these bonds be remembered
| eng7=
Will your song, growing unclear, disappear one day?
Sought after, but out of sight, like a shooting star
| eng8=

It will now echo, to the end, forming these emotions
Like an incessant miracle, may this light reach!

| lyrics_source =[https://fuyutora.wordpress.com/2016/07/04/like-a-momentary-brightness/ Translation] by Fuyuko
}}