I am the shadow you do not stand in
and the cloud rolled ‘cross your sun.
I am that which stops all tongues
and makes your lives come undone;
the chill that pricks up the little hairs
and sends the heart to a quicker place,
a darker, colder place;
I am unseen in mixed company,
without reflection but right next to you;
there surrounding me are many and none,
…what am i?