As the world awaits news of Michael Schumacher's health, former rival Damon Hill says the German's injury is a reminder of how "precious life is".
Almost three weeks since he suffered a severe brain injury while skiing with his son in the French Alps, Schumacher remains in a hospital in a medically induced coma.
With his spokesperson Sabine Kehm stating almost two weeks ago that no updates would be issued unless his condition changes, one can assume that the 45-year-old remains in a critical but stable condition.
Hill, who had an acrimonious relationship with Schumacher during the mid-1990s as they fought for World titles, says he is shocked by the situation.
"It's definitely a cloud hanging over Formula One because Michael has been such a large part of the sport. We're all shocked, deeply concerned and praying for his family and for him," the 53-year-old told The Indian Express.
"Michael loved skiing and he loved life and we all, I suppose, come from a similar make-up. There are millions who go skiing and I'm sure that won't change.
"This reminds us of our vulnerability and how precious life is. Taking precautions is a must and racing drivers are extremely cautious."
Recalling his days fighting against Schumacher, the 1996 World Champion said: "Race in F1, you're going to meet the best of the best. Michael went on to become the best of them all. You cannot hope anything better than that.
"Michael gave everyone in F1 that opportunity to really take on somebody that talented. We owe Michael an enormous amount of gratitude.
"He was controversial. He approached his racing in a very quiet way. He pushed limits but that's just what sport is and you have to contend with that.
"My competition, Hakkinen, Coulthard, Alonso, everyone had the chance to race against him. He was intensely competitive and you couldn't ask for more."