Grieving the loss of a loved one - whether human or animal - is not only permissible, it is essential.
The inner encounters I have with animals - and will be teaching you to have - are exchanges of meaning.
It is commonplace, and true, to point out that animals are happier than people because they live entirely in the present.
Animals don't know exactly what will happen when they die any more than we do. In the absence of specific knowledge, they simply trust. They trust death the way they trust life: as participation in the Source. What will happen when they die must be okay because what is happening now is okay.
I believe we have this idea that bad things ought to be prevented from happening.
Change comes from dedicated, ordinary people, in the trenches, serving a cause greater than self.
We all came into this world wired to connect with all life.