Sorry for your loss. Hang in there. I can definitely relate. I had 3 dogs that had grown old and I lost all three within 2 years. It was tough. I will never forget how much peace and love they gave me. They will always be part of me. I ended up getting a new puppy and I can't believe six years have flown by. Taking my dog for walks brings me peace. That plus music and occasional meditation.
For me, peace is not so much the existence or presence of something. It is more the absence of stressers and things you don't like. Some people find peace in the noise - not me.
oh I like your answer I sometimes do find peace in someone else's high energy, or a buzzing city vibe that I can take in