(CNN) Brooke Eaton was overcome with emotion when she heard her son's heart beat again inside the chest of 16-month-old Lola Bond.

"I could feel my son," Eaton said. "His heartbeat was so pure."

Cazmirr "Cash" Landers was an outgoing 2-year-old who wanted to travel the world by tricycle, his mother said. He never met a stranger and was fond of sharing things with the people around him.

When Cash died in a drowning last year, Eaton decided to donate his organs in the hope that his legacy would live on.

Eaton's selfless choice saved Lola's life when she was 5 months old. On Wednesday, Eaton was able to hear his heartbeat through Lola for the first time.

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