how do they know me?

i glow as i am, wholly yellow light.
visions follow me, they uncover me,
neither mirage nor death.
they trail me into the depths,
and when i rise up to breathe
i find their silky arms wound around me.
my legs cannot join me.
they become motionless and tense.
my unburdened hands vibrate passively.
my heart opens, a hinged box full of light.
the twisting reminds me of something,
but what?
let me ask again...