We took the ashes home in a bronze urn and put the urn on the fireplace mantel in our bedroom, where it has ever since remained.

Some will say, “She was only a dog.”

Yes, she was a dog, but not only a dog. I am a man, but not only a man. Sentiment is not sentimentality, common sense is not common ignorance, and intuition is not superstition. Living with a recognition of the spiritual dimension of the world not only ensures a happier life but also a more honest intellectual life than if we allow no room for wonder and refuse to acknowledge the mystery of existence.

NEVER IN MY career had I suffered writer’s block until we lost Trixie. I sat at the keyboard day after day, in the middle of The Darkest Evening of the Year, a story full of golden retrievers, and could not advance the manuscript by a single word.

An acquaintance, offering condolences for our loss, admitted that she was embarrassed because she had grieved more for a dog of her own than for family and friends she lost to death. I told her that she had nothing about which to be embarrassed. No matter how close we are to another person, few human relationships are as free from strife, disagreement, and frustration as is the relationship you have with a good dog. Few human beings give of themselves to another as a dog gives of itself. I also suspect that we cherish dogs because their unblemished souls make us wish-consciously or unconsciously-that we were as innocent as they are, and make us yearn for a place where innocence is universal and where the meanness, the betrayals, and the cruelties of this world are unknown.

Saturday afternoon, at the end of the third week of my writer’s block, as two o’clock approached, neither Gerda nor I could bear to be apart or to engage in any mundane task. As we’d done the previous two Saturdays, during the hour that Trixie had passed, we walked together, hand in hand, around these two and a half acres that our girl loved, visiting her favorite places. Three weeks to the minute after Trixie died, as we were walking the larger lawn, a brilliant golden butterfly swooped down from a pepper tree. This was no butterfly like any we had seen before; nor have we seen it since. Big, bigger than my hand when I spread my fingers, it was bright gold, not yellow. The butterfly flew around our heads three or four times, brushing our faces, our hair, as no butterfly had ever done before. Swooping back up past the pepper tree, it vanished into the sky. Gerda, who is the most levelheaded person I have ever known, said at once, “Was that Trixie?” and without hesitation, I said, “Yeah. It was.” We didn’t say another word about the experience until later, near bedtime, when we discussed the incredible thickness of the butterfly’s wings, which were too thick to be aerodynamic. Gerda remembered them as being “almost edged in a neon rope,” and to me, they had appeared to be like stained glass with a leaded edge.

No landscaper who works here has ever before or since seen such a butterfly, nor have we. It danced about our heads at the very minute Trixie had died three weeks earlier. Skeptics will wince, but I will always believe our girl wanted us to know that the intensity of our grief wasn’t appropriate, that she was safe and happy. After sharing this story on my Web site, I received hundreds of letters from readers who, after losing beloved dogs, experienced uncanny events that were quite different from ours but that seemed to be intended to tell them that the spirits of their dogs lived on.

FOR EIGHT MONTHS after losing our girl, we could not find the courage to have another dog. Finally, I told Linda Valliant, the current director of CCI’s Southwest Chapter, that we would be ready in two months if they had a release dog that needed a home. Once you have had a wonderful dog, a life without one is a life diminished.

In May 2008, more than ten months after Trixie left us, Linda brought another female golden retriever to us. Her name then was Arianna; her name now is Anna Koontz. Linda didn’t know it at the time, but when a few weeks later she gathered the adoption papers on Anna, she discovered that our new girl is the great-niece of our Trixie. Anna’s personality is different from Trixie’s, but the wonder is the same.

After Trixie’s death, Judi Pierson, formerly of CCI, told me that the way by which the magical girl had come to us seemed to have the kiss of destiny to it. When I told Judi, in 1998, that we were at last ready to accept a release dog, she had said there were a number of mooshy ones available. She was going on a two-week vacation and would have our dog for us the day after she returned.

As she left on her vacation, she tasked others with reviewing all the available dogs and selecting from them the best of the lot. In mid-vacation, she learned that a strange thing had happened. Most often, if there are numerous release dogs available at the same time, finding the right homes for them in the CCI family can take a couple months or longer. In this instance, all dogs were placed almost within a weekend, and none remained available.

Having promised us a dog, Judi cut short her vacation, without telling us, and set out to comb through the organization in search of an animal that might have been overlooked. She discovered that Trixie was never certified for release and was still recuperating after she should have healed. Julia Shular, with whom Trixie was then living, had been considering using her as therapy dog in visits to hospitals and nursing homes.

If all the available dogs had not abruptly been placed in record time, if Judi had simply asked us to wait another couple of months instead of tracking down Trixie, we would have received another dog. That would have been wonderful, too, but it would not have been the same, and another dog might not have wrought in us the changes that Trixie effected.

Trixie was our destiny. And if we had asked for another dog sooner or delayed another month, we would not have received Anna, Trixie’s great-niece. Do you detect some wonder and mystery in that? We do.

THIS WORLD IS infinitely layered and mysterious. Every day of our lives, we see far more than we can comprehend, and because the failure to comprehend disquiets us, we lie to ourselves about what we see. We want a simple world, but we live in one that is magnificently complex. Rather than acknowledge the exquisite roundness of creation, we take it in thin slices, and we view each slice through tinted, distorting lenses that further diminish its beauty and obscure truths that await recognition. Complexity implies meaning, and we are afraid of meaning.

The life of a seamstress is no smaller than the life of a queen, the life of a child with Down syndrome no less filled with promise than the life of a philosopher, because the only significant measure of your life is the positive effect you have on others, either by conscious acts of will or by unconscious example. Every smallest act of kindness-even just words of hope when they are needed, the remembrance of a birthday, the compliment that engenders a smile-has the potential to change the recipient’s life.

If by the example of her joy and innocence, a dog can greatly change two lives for the better, then no life is little, and every life is big. The mystery of life is the source of its wonder, and the wonder of life is what makes it so worth living.

ON THE IMPORTANCE of the human-dog bond and on the reason why we give our hearts to them knowing what is to come, a character in my novel The Darkest Evening of the Year says this:

“Dogs’ lives are short, too short, but you know that going in. You know the pain is coming, you’re going to lose a dog, and there’s going to be great anguish, so you live fully in the moment with her, never fail to share her joy or delight in her innocence, because you can’t support the illusion that a dog can be your lifelong companion. There’s such beauty in the hard honesty of that, in accepting and giving love while always aware it comes with an unbearable price. Maybe loving dogs is a way we do penance for all the other illusions we allow ourselves and for the mistakes we make because of those illusions.”