It's the stability within her hand. No, it's the stability of who she is, how strong she stands, how consistent she is, how calming she is to Raji. Like, he never expected this, never would have guessed that his hopes and dreams (however foolish they had seemed at the time) would come to pass.
Raji is safe here. And he doesn't take that for granted. Not anymore.
But he wants Shirayuki to know just how grateful he is, just how much he loves her, how much he admires her, and how much she's changed him. The words are hard to find, but Raji only feels eloquent in his poetry, that's the only time where he feels his words hold their weight, and when he feels less likely to stammer.
Some poems come easy, and others take far more work to find just the right wording. But they are allowed their time. Moments aren't afforded as much time for talking as there is for revising and writing poems.
"Thank you." Raji squeezes Shirayuki's hand in his lightly, and they pause. She looks up at him, and Raji sees something that sparks hope in his heart, that makes his breath catch.
"For what?" She's honest and sincere and maybe a little surprised by his random gratitude.
"For being who you are." And Raji lets go of her hand to pull Shirayuki into a hug.
With this embrace, he hopes his words truly carry the weight in which he spoke them.