You are about to embark on a journey. Unlike most journeys, this is an inward journey. Although the void exists everywhere, to understand it requires introspection.
Introspection needs clarity of mind, which in turn requires a calm and tranquil mind.
Therefore, before you proceed, stop and rest your mind and body for a minute. Take a few deep breaths, and focus your attention completely on each breath. At the same time, relax every muscle in your body and clear your mind of all thoughts. You must leave your worries and troubles behind, for they have no place here. Once you are relaxed, please continue.