"True silence is to the spirit what sleep is to the body...nourishment and refreshment."
~ William Penn
Solitude is a fundamental primordial need. In fact, I found it very interesting to read that all tribal cultures (including Native Americans) have an old ritual of going alone into the wilderness in search of clarity. They retreat from their daily lives to purify themselves and to renew their purpose and direction in life.
In today's world, whether we realize it or not, I think many of us are searching and longing for solitude. When it's been too long since I've had a break it begins to affect my moods, my energy levels, and my ability to think clearly and act decisively. My body, my mind and my soul are telling me to seek solitude.
To stay motivated, to keep your emotional battery charged, I highly recommend setting aside pockets of time during each day for solitude. You might have only five or ten minutes, but be alone and uninterrupted. And then sometime each week devote an extended time of one hour or more to reconnect with your soul. How and when you do it is a very personal thing, but plan it because solitude doesn't usually happen on its own. Make it a priority in your life.