Introverts tend to be extremely analytical. Of course, this is a beneficial attribute to have, but other times it can be tortuous. The second I have a moment alone or am doing some mundane task like highway driving, I become totally lost in my thoughts.
Thinking isn't necessarily a bad thing. Let's face it, far too many people do far too little thinking. The problem lies in what I think about. I don't think about what I should eat for dinner, plan my next vacation or when I need an oil change. Instead, I spend hours pondering life's complexities; from the origin of the world, to religion, to death. Anything unanswerable...you name it, I think about it.

Sometimes it's nice to feel intellectual and theorize, and I do enjoy deep thinking. And it certainly is something I do not wish
to stop completely. But often I feel like Alice in Wonderland falling through the rabbit hole with ticking clocks and the Cheshire Cat mocking me. It's unnerving that I focus so much energy on questions that lack answers. My deep thinking can even work me up to the point of making me anxious when I can't explain these mysteries.
One solution would be to express my ideas and chat with others about them, and this is exactly the type of conversation I excel in. Yet, after more than a few strange looks and raised eyebrows, I've discovered that most people don't share my interest. So my theories on time and life after death are kept to myself, resulting in a rare but glaring feeling of loneliness and futility. When my thoughts get to the point of resulting in these feelings, I find my analytical nature to be detrimental.
As much as it is natural for the introvert to find themselves in deep thought, I need to strive for only a healthy dose of the Alice in Wonderland rabbit hole.