In life, there are those who are the players and those who are the spectators. The players sometimes succeed and sometimes fail ... the spectators always succeed at being a "spectator", and they never fail at being a "spectator". What's more, the spectator gets to witness, criticize, and ridicule the players for all their failures (the armchair quarterback). In so much of the things of life, being a spectator is safe and faultless.
Unfortunately, this attitude carries over into our relationship with God. In other words, it feels safe and faultless to be a spiritual spectator: cringing when others make huge life sacrifices for Christ, listening to the miracles prayed about and witnessed by others, watching as others seek the Lord's vision, applauding when God does spiritual transformations of other's lives. All the while, the spiritual spectator imagines that their personal waltz with religious activity is sufficient.
If we find ourselves being a spectator of the things of God rather than an investor - one who sacrifices for the vision of God - then some rightsizing is needed in our life. Why? Because it is a failure to merely be a spectator of God.