Why is Smile Gaster's Motif?

What's with all the creepy smiles? Are smiles Gaster's motif? Is there some deeper meaning to all these spoopy smiles in Undertale? I dunno, but I'm if we're gonna solve this mystery, we're gonna have to learn English Literature 101! Why? Uhhh... j-just trust me dawg. 0:00 Intro 0:19 Disclaimers 0:30 Setup 0:44 What are Motifs? Your in school now get comfortable. 4:55 Standard Smiles (yes the lecture is still going!) 5:37 Social Smiles 6:25 Why does everyone Smile when I KILL THEM? 8:26 Creepy Smiles (from our Best Friends) 9:53 The True Creepy Face 11:13 GASTER TIME (Finally!) 12:01 SMILE.OGG (a closer look at them pearly whites) 12:45 Why Smile is Gaster's Motif 13:30 What this implies about Gaster 14:51 Smiles tie Gaster to Ralsei too 16:40 Ralsei is being manipulated, here's my logic 17:47 OH GOD THERE'S WINGDINGS EVERYWHERE 19:44 Credits Time!!! 20:52 Channel News and Special Thanks Time! 20:09 Outro Fredz Channel: https://www.youtube.com/c/FredzDimension Molly's Channel: https://www.youtube.com/c/mollystars/videos The Official Spanish Channel: https://www.youtube.com/channel/UC7w-0tNx2acl5hS9bdRuu_A/videos The Games as Literature Channel: https://www.youtube.com/c/GamesAsLiterature The Reddit: https://www.reddit.com/r/HalfBreadChaos/ The Patreon: https://www.patreon.com/HalfBreadChaos The Shrug Emote: ¯\_(ツ)_/¯ I should not be allowed to write these while sleep deprived. Will hiring an editor cause me to become LESS sleep deprived? Only time will tell!