Prince Charles has opened up for the first time on his experiences with coronavirus, admitting he is "lucky" compared to the many who lost their lives.
The senior royal, 71, said he can understand what other sufferers have been through - and feels "ghastly" for those who couldn't be with sick family members as they died.
"I was lucky in my case and got away with it quite lightly," he said.
"But I've had it, and I can so understand what other people have gone through.
"I feel particularly for those who have lost their loved ones and have been unable to be with them at the time.
"That to me is the most ghastly thing."
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From his home in Aberdeenshire, where he has been isolating with wife Camilla, the Prince of Wales spoke to Sky News about life after Covid-19 for a new series.
He said his own experience with the killer bug has made him "even more determined to push and shove and shout" to help the world recover from the pandemic.
"It's only catastrophes that concentrate the mind," the Duke of Windsor continued, adding that he has not been "wasting time" during his recovery, rather he's been liaising with world leaders on the way to move forward.
He added: "In order to prevent this happening to so many more people, I'm so determined to find a way out of this."
The prince was diagnosed in March but is understood to have suffered only mild symptoms and isolated for seven days.
"I can't tell you how much I sympathise with the way that everyone has had to endure with this unbelievably testing and challenging time," he said.
"I know that so many people have had the agony of losing their loved ones and the bewilderment and anxiety that surrounds everything.
"It is the most awful aspect of a pandemic like this, and yet we've seen at the same time people being quite remarkable and wonderful people in the national health service and all the other key workers who kept everything going."
A lifelong environmentalist, the prince said the crisis must encourage the world to "realise we have to put nature back at the centre of everything".
"The more we erode the natural world, the more we destroy biodiversity, the more we expose ourselves to this kind of danger."
These sentiments were echoed in a speech he made on Wednesday - declaring "each and every one of us has a role to play" as he launched the 'Great Reset' project at an online gathering of the World Economic Forum.