I was going to start off by talking about my inner nerd, but I feel like there's nothing "inner" about my nerd. So I'll just say what I'm interested in and let you all judge me for being one.
Subject: light. Possesses both wave- and particle-like qualities. Spreads out and becomes a pretty rainbow, concentrates and becomes a deadly sci-fi weapon. Emits heat, dispels darkness, bends, refracts, reflects, is visible and invisible, and can win a race against anyone. Heck, if you were to run a race against light and tie, you would become denser and flatter in the process!
The most curious to me, though, is how it draws things to it. Insects to those zappy things, bears to campfires, bums to beaches, whatever. Light has that innate quality to attract, no doubt in part because it warms and provides clearer direction, but it also seems to radiate (no pun intended) with some inherent goodness. All these qualities are shared by spiritual light as well.
(Bonus points to whoever can come up with a parallel to spiritual light and lasers and reports back to me.)
Like that one time I came into the kitchen to turn the light off and found a beam shining directly on my scriptures. Or after a long day in the math lab, somehow being directed to walk upstairs to my professor's office, who normally isn't there then, and being able to get some guidance from him that helped me feel tons better that day. The light--or the Light--drew me into where I needed to go.
So in any area of your life where you may feel darkness--sadness, despair, confusion--seek light. Through good people, places, goals, activities, as long as they shed that God-given light. Seek it through prayer, scripture study, and seeking God in general. It's no coincidence that Joseph Smith said he "[remained] in darkness and confusion," before he "saw a pillar of light," (Joseph Smith History 1:12-17). God's light is given to all, and it will illuminate our paths more the more we seek Him.
"Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life," (John 8:12).
I love you all!
P.s. Here are some great videos on physical and spiritual light from people that have way more credence than I do! Watch them!