The ring itself is a weapon of sorts because it grants the bearer powers like immortality and invisibility, and its purpose is to control Middle Earth.
Sue gained the passive ability of invisibility, leading her to play the distraction in many adventures.
Then, activate invisibility and get all the items and go back outside.
Reviewers also mentioned its comfort level and invisibility factor.
The hypothesis which best explains all the phenomena is that the light is that of the sun reflected from an extremely tenuous cloud of particles having the form and extent described, and becoming more and more tenuous as the earth's orbit is approached until, immediately outside the orbit, it fades into complete invisibility.