Aimlee,
I also believe that there is something beyond this life, but that sometimes our grief is so loud that we cannot hear the words, or feel the presence that we so desparately desire. My story concerns not the death of a human, but that of a dearly lovely pony. My friend had to have her put to sleep to end her suffering, and I waiting with her as the vet prepared the injection. I asked my dear departed dogs to come and help Strawberry find her way to the pastures beyond. The injection was administered, I turned my friend away from the scene before the pony went down ... and then I could feel my dogs around us, happy and joyful, and I knew Strawberry would be alright.

If you search for a sign, I believe it will be harder to find one. But if you search for good deeds to do, and comfort to give, and beauty to find in this world - you will find solace and peace in the quiet times.