Sungazing is a practice that includes gazing at the sun

Sun

The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields...

 for nourishment or as a spiritual practice.
Looking into the sun is dangerous, and can cause solar retinopathy

Solar retinopathy

Solar retinopathy is damage to the eye's retina, particularly the macula, from prolonged exposure to solar radiation. It usually occurs due to staring at the sun or viewing a solar eclipse.-Pathophysiology:...

 and lead to permanent eye damage or blindness.
Proponents of sungazing claim increased energy levels and decreased appetite; as with other forms of inedia

Inedia

Inedia is the alleged ability to live without food. The word was first used to describe a fast-based lifestyle within Catholic tradition, which holds that certain saints were able to survive for extended periods of time without food or drink other than the Eucharist.Breatharianism is a related...

, this claim is not considered credible due to the lack of scientific studies confirming it.

Sungazing is also part of the Bates method, an alternative therapy

Alternative medicine

Alternative medicine is any healing practice, "that does not fall within the realm of conventional medicine." It is based on historical or cultural traditions, rather than on scientific evidence....

 intended to improve eyesight.