The cave you fear to enter holds the treasure you seek. Fear of the unknown is our greatest fear. Many of us would enter a tiger's lair before we would enter a dark cave. While caution is a useful instinct, we lose many opportunities and much of the adventure of life if we fail to support the curious explorer within us.
Opportunities to find deeper powers within ourselves come when life seems most challenging. Negativism to the pain and ferocity of life is negativism to life. We are not there until we can say 'yea' to it all.