They help you cope with your grief, loss, and sorrow.

In one of his blog posts, he talks about a dream he had when his parents passed away. The dream was a so-called visitation dream, and after that, McNamara began to argue that these dreams were a sign of life after death.

“Now if I, an individual who studied dreams with a skeptical scientific cast of mind, could not shake the conviction that I had just communicated with my dead parents, how much stronger must be the conviction of someone with a less skeptical approach to dreams than me?,” McNamara writes.

Patrick McNamara isn’t the only one who is interested in these dreams, and there have been several studies that dig deeper into this phenomenon.