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Many people find a memorial is helpful when burying their cat. Before placing your cat in the ground, you can say a few words, sing a song, or read a poem.  Consider inviting friends and family members over to say goodbye your pet. Young children may find a memorial particularly beneficial. You can encourage them to all collect things that remind them of their lost pet. They can place these things in the hole alongside the cat's coffin. After saying a few words, gently set your cat's coffin in the ground. Refill the hole with the soil you dug up. Make sure to press the soil down as you place it over the grave. You want the soil to be firmly in place to prevent predators from digging up your cat. Do not skip the grave marker. While it may not be important to you as a symbolic gesture, a grave marker prevents the grave from being disturbed. If you purchased a coffin, set it over the grave. If you're using rocks or other materials, pile them over the cat's resting place. If you're planting something in the ground, make sure to surround the base of the plant with something heavy. This will keep predators away. Once the marker is up, you may want to decorate the gravesite. You can put up temporary decorations, like flowers and other foliage. If you have young children, they may want to decorate the grave. You can encourage them to do something like write notes to the cat or draw pictures to leave at the gravesite.
Have a small memorial, if you wish. Lower your cat into the hole and cover it with soil. Set up your grave marker. Decorate the gravesite, if you want.