Hi jaded. I'm sorry that I've been away from the forums for a bit.
First, let me express my sympathy for your loss. It's never easy to be separated from those we love. Dreaming of being surrounded in gray does, among other things, indicate confusion. Nothing is clear when we're immersed in grief. This is a time of grayness (sadness, depression, loss, confusion) for you.
Before I can comment on the Arabic language, I have to know if you speak Arabic in your waking life. What does this language mean to you? And if you're unfamiliar with this language, how did you know it was Arabic?
As for seeing your deceased grandmother, if you and she had a good relationship when she was alive, she might have come to your in your dreams to offer you comfort.
The green pasture. Well now. That sounds familiar to me. So frequently have I dreamed of green pastures. Most dream interpreters would assume that dreaming of a dream pasture means that you might be yearning for better times or situations or that your future will be greener/fairer. Perhaps there will be more money or relaxation. But while I do agree that you might be yearning for ease and relief from earthly sorrows and burdens, this green pasture doesn't always represent that this is coming in your waking life.
This green pasture is a spiritual place where your spirit can rest from your earthly worries during your dream state.
Often, I dream of a beautiful, sunny meadow or flowery clearing. But then, there is a wide open green pasture with a blue sky backdrop. Sometimes, people approach from over the horizon and come to me to visit.
This green pasture is like a space between worlds. Linger in this green pasture, look to the horizon and see who comes to visit you during your dreams...