Here's middle of wilderness,where is sinking: Someone tell me why

Here's middle of wilderness,where is sinking: Someone tell me why: "Thought in some night deeply you weren't among my arms but I was at your hand sinking in your embrace Like a bird under ocean But in fl..."

Someone tell me why

Thought in some night deeply
you weren't among my arms
but I was at your hand
sinking in your embrace
Like a bird under ocean
But in flight

p.s: I'm thinking about ways of choosing my ways, I confused. Wich one is better? Come back or Turn back, may be going back.