Tamas, Darkness, asks about a situation in which it is difficult to see clearly or find a direction. In this board's reading, the image may concern confusion, avoidance or an assumption that has gone unexamined for too long.
The snake from 63 leads to 2, Illusion. It spans 61 squares, the longest numerical descent on this board. Symbolically, losing sight of context can return a person to a familiar explanation that needs another look.
You might begin by identifying what is unclear. Is information missing, is the subject painful to approach, or is the question too large? A smaller question, a reliable source or another person's help can offer a place to start.