“I've experienced that [before],” he told Autosport.
“Obviously we had that in Japan [with Bianchi], we had that experience, but then I had another 11-year-old die on the race weekend when I was racing as a kid.
"So I'd experienced it before. And for a driver, it really hits you hard. I don't know how it was for the other drivers but, for me, it hit me in the depths of my soul. It was really hard.
"For the rest of that day and then the evening, I couldn't go to sleep, I just couldn't believe what had happened that day. I guess your mind is just working overtime, trying to get used to the reality of what has happened.
"And also to the fact that, look, we lost Charlie [Whiting] this year and Formula 1 just continues on, we lost Niki [Lauda] and the world just goes on.
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