Ski organisers in Zermatt say they want to 'show solidarity with all the people who are currently suffering and are grateful to all those who are helping to overcome the crisis'.
Switzerland, which borders hard-hit northern Italy, yesterday became the fifth European country to record 10,000 cases of the virus.
The illumination was set up by Swiss light artist Gerry Hofstetter and is being broadcast on webcams so that people can watch without leaving their homes.
As well as the English words, the projection has also displayed a heart, an image of the Swiss flag and a German-language call for 'solidarity'.
The tourist resort has been shut down until at least April 19 because of the pandemic, bringing its cable cars, mountain railways, and ski lifts to a halt.
All ski resorts have been shut down since March 13, although some regions of Switzerland had already imposed their own bans before then.
Switzerland yesterday became the fifth European country to declare more than 10,000 virus infections, joining Italy, Spain, France and Germany in passing the unwanted landmark.
The health ministry said 10,714 people in the Alpine country have tested positive for the new coronavirus, after 949 new cases brought the total from 9,765 into five figures.
Switzerland has recorded 161 deaths from the disease.
The Italian-speaking southern region of Ticino, which borders hard-hit northern Italy, is the worst-affected of its 26 cantons, accounting for around 40 per cent of Swiss deaths.
Elsewhere, China, Iran and the United States have also passed the 10,000 mark, according to the latest World Health Organization situation report on the global pandemic.
In total, '91,400 tests have been carried out for Covid-19, of which 14 per cent were positive,' the Federal Office of Public Health in Switzerland says.
Those testing positive have ranged in age from under one to 102, with a median age of 52 years old, and a near-even split of men and women.
The Swiss government has ordered the closure of schools and all places of leisure, including restaurants, bars and non-food shops.
Last Friday it went further, banning all gatherings of more than five people, while anyone standing closer than two metres to others risks a fine.
'At the moment it would definitely be too early to talk about easing' the restrictions, health ministry official Daniel Koch, who is heading the Swiss response, told a press conference in Bern.
'We must first have proof that we have reached the peak of this epidemic - which unfortunately is not yet the case.'