Then he said to me, "Son of man, do you see what the elders of the house of Israel are committing in the dark, each man in the room of his carved images?" For they say, "The LORD does not see us; the LORD has forsaken the land." (Ezekiel 8:12 NASB)
The hidden chambers of Solomon's temple were designed to hold the articles of worship and the temple treasures; instead they held the idolatrous articles of the priests. They thought no one will see, no one will know, ignoring the all seeing eye of God.
We also have hidden chambers that are filled with unresolved hurts, doubts, animosities, and fears. We shove them down into the subconscious and pretend they don't exist. Countless numbers of people including believers are burdened down with spiritual garbage. Satan can't get to the new spirit or heart, but he can concentrate on digging up unresolved issues that reside in the subconscious part of man. How do we deal with all the spiritual garbage that plagues our soul?
A good old fashioned spiritual housecleaning would be a first step. David knew this when he said, "Wash me clean from my guilt. Purify me from my sin...purge me with hyssop and I shall be clean..." (Psalm 51:2,3) Spiritual housecleaning takes place when we honestly confess our sins to God, receive his forgiveness, and fill the void with the word of God.