In the dreaming we go on.
I love this:
But the soul, it does remember
Keeps it safely tucked away
In a corner made of blankets
Two young girls will always be.

My sister at 18 was murdered in 1975. It's been almost half a century now.
Sisters #2 and #3 died six months apart. Quite recently. Ages 63 and 62.
I have one sister left.
You woke up from a dream about your sister. I've been told (by someone from a school of metaphysics who conducted research on it) that when visited by a loved one who does not speak in a dream, we were visited by the spirit of that departed loved one.
My mom sometimes dreams of her three daughters, and they often speak, but maybe that doesn't mean they're not visiting her in her dreams.
I feel your pain.... thanks for the poem.