Author Edward Grinnan discusses the healing power of dogs in our lives

The author sat down with ABC News' Robin Roberts to talk about the bond between humans and dogs in honor of National Puppy Day.
4:29 | 03/23/17

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Transcript for Author Edward Grinnan discusses the healing power of dogs in our lives
We are celebrating national puppy day in case you can't tell with a look at the way dogs help us heal. Something author Edward Grinnan explores in his new memoir called "Always by my side." He is also the editor in chief of the inspirational magazine "Guideposts." A beautiful publication that has been a part of my family's household for as long as I can remember and that's why I was so honored to be on the cover with my dear mom and to talk with Edward about the new book and you'll see his beloved dog Gracie is always by his side. I didn't know you could dance too, K.J. For nearly 18 years my dear kj filled my life with joy. Yeah. The unbreakable bond between humans and dogs undefootball. Are you ready? Reporter: And at the heart of author Edward Grinnan's moving new memoir, "Always by my side." What is it about animals and dogs in particular. I think dogs in my case at least they've made me a better person. You know, I think I'm training them but what they're doing is teaching me. Each dog you've been blessed to have in your life has been there for a purpose. Throughout my life at every pivotal moment there was one dog at my side that was there for a reason. Moments not unlike the spring night Edward met his now wife Julie. I was just walking along when I saw this wonderful cocker spaniel and I happened to mention it was the fattest cocker spaniel I had ever seen. That came out of my mouth. I regretted it instantly. I thought this person is going to run away from me but the dog didn't. Rudy came trundling over and pulled Julie over and that's how we met. He was cupid with a little tail. Reporter: Edward says our four-legged friends have an uncanny ability to teach us what we can't teach ourselves. Build bridges between humans and help us heal. Tell us about Millie. Millie came into my life at a time when I was going through some difficult things and so was Julie including loss of her mother, loss of my mother. We get up in the morning and you know immediately your worries begin to fill your head and Millie would be sitting, oh, no, this is going to be another fantastic day of life and would take me outside and say hello to all the neighbors and there was a street person named Maurice who used to hang out in one of the doorways and Maurice, you know, he didn't relate that well to people but he related to her. We tried to give him food or a bottle of water and he wouldn't have it. So I taught Millie to take a bottle of water from the deli and bring it to him and he took it from her. Millii reminds me of my jack Russell. I lost my parents, I lost my health. When I lost my dog. I know. Whoo. I waited a little time after kj. We did a rescue with north shore and wanted a dog to pick us and Lucas really did if that's the thing about loving dog, robin. People will ask me well how you take on that heartache every six, seven, 10, 15 years. And it's because I know that there's a dog out there that needs to be loved. And I don't have any right to say no to that. It was so hard. So difficult to say good-bye to Millie but she taught me acceptance and letting go and moving on. Lessons of unconditional love from man's best friend. This is a book for people who have loved dogs in a way that they never expected and I want to tell them that there are others like you out there and if you find that there are certain days of your life when your dog is the most important thing, this is who I wrote the book for. You're not alone. You are not alone. You're not alone. Ah. We're not alone. We're not alone right now. The dog that was buy Edward's side was Gracie. It's actually her birthday today. She's actually years old. Happy birthday Gracie. Here in the studios the puppies have taken over. We have our own production assistants with us, yeah, take a look at the control room. Yep. I knew it. I knew there was something different in there. They've been so quiet. But, again, the north shore animal league, we thank them so much. And, you know -- and that book really helped me and we know -- Oh, yeah. It's not like you're replacing the one -- what -- He's this there. But it's just realizing you have room in your heart to love to grow. Yeah. Absolutely. Coming up, rising country

This transcript has been automatically generated and may not be 100% accurate.

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