When John Travolta's son Jett died in 2009 from a seizure, the actor said that loss was the "worst thing that's ever happened in my life."
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The "Pulp Fiction" star, who turns 60 today, sat down with BBC's Barry Norman at the Theatre Royal in London recently and admitted he "didn't know if I was going to make it" after his firstborn's death.
Jett Travolta, who died at 16, was autistic and had a history of seizures.
The legendary actor admitted that after the tragedy, he "didn't want to wake up" and that "it took a lot to get me better."
Travolta said it was the people of Scientology that got him through over a two-year period.
"They didn't take a day off, working through different angles of the techniques to get through grief and loss, and to make me feel that finally I could get through a day," he said.
Travolta and his wife of 23 years Kelly Preston are parents to two other children - daughter Ella Bleu, 13, and son Benjamin, 3.