I want you to rip open your chest and drag my body from your heart to your mind. Push my head into the deepest parts of you. Grab a fistful of my hair and keep my head down.
I'll start to gasp for air,
Unintentionally swallowing parts of you,
feeling the air in
every
alveoli
sac
get replaced by your fears,
Your dreams,
and all your favorite things.
The lyrics from your favorite songs, quotes from your favorite books, and every word from your favorite quotes.
Every sac would be filled with every time you've apologized to someone that wasn't worth it,
The thoughts you have at night when you lay in bed unable to sleep by the loud thoughts in your head.
And what you think happens to us when we die.

I then want you to pull me out.
See if I gasp for oxygen.
If I do, push me back in again.
Deeper this time.

Replace every sac that has been filled with your irrational fears, with every incident you've had that made your legs ******* and teeth chatter from the terror you've felt.
Replace every sac filled with the dreams that you have now, with every dream that you've had before. Tell me about your broken dreams, the dreams you decided that you didn't want anymore, and the dreams that didn't want you.
Replace every story about your past lovers with what you think about your first kiss. And if you think a first kiss is with whoever pressed their lips against yours, or if 'first kiss' is just another word for "the first kiss that felt like two stampedes crashing into each other, exploding into a full spectrum of feelings".

Now pull me out again.
See if I scream your name like it was the Exit door and I was in a burning room.
If I do, if I call out your name instead of gasping for oxygen, know that you've successfully replaced my air with you.
You did it.