Thousands of rainbow bridges.

Thousands of strangers are going out of their way to make life just a little less sad for a nine-year-old boy who lost both of his parents within weeks of each other, ABC News reported.

Robbie's Ecuyer's mother, Shelley, who suffered from gastroparesis and cystic fibrosis, told him that if anything ever happened to her, she would be crossing a rainbow bridge to heaven. She passed away in May, leaving Robbie in the care of his father, who unfortunately overdosed just two weeks later and died.

On the same day that Robbie's father died, a family member who was picking Robbie up from school was shocked to see a double rainbow hanging over Robbie's school. She took a photo to show Robbie as evidence that his parents had crossed a rainbow bridge to heaven.

The photo had a profound impact on Robbie, who is autistic. Robbie's aunt, Crystal, who has taken custody of her nephew, saw how Robbie reacted to the photo and took to social media with a plea for others to share their own photos of rainbows for Robbie.

What happened next was not expected. Over 7,000 people sent photos of single and double rainbows from all over the United States and across the world. One little girl named Samantha Sparks, from Baltimore, Maryland, sent Robbie a picture that looks as though the rainbow is literally coming out of her hand.

According to Crystal, the rainbow pics have meant a lot to Robbie. "It's very comforting knowing that so many people have reached out to him with the simple request of a rainbow," she said.