Spiritual wisdom is supposed to be direct knowledge of spirit or absolute Mind, itself. This is something only a sage knows or has realized. Everybody else is drifting along more or less deluded who have other important things to do besides sitting in a cave focused on seeing the clear light Mind. They have a job, their family and children to worry about. All this is important, but only from a relative point of view.
So somebody has to minister to these lost people. But who can do it? Watkin's Spiritual 100 List is a list of the who's who in the day-to-day world of spiritually oriented consumers who are starting to sense that life is not a bouquet of freshly cut roses.
I am sure more names could have been added to extend the list considerably. One hundred names are not exhaustive. Still, this list of names gives us a fairly good idea what spiritual consumers are looking for.
However, much of the spiritual medicine offered by many members of the list is not fundamentally spiritual. Much of the medicine, I would argue, falls under the category of hedonism. Such can be thought of as joyful avoidance which is bent upon avoiding the heaviness and gloom of life so as to take renewed delight in the senses. This includes learning to be in the here and the now, or the same, the present moment. It also means to be free of Freud's ego which is always trying to dethrone the pleasure-principle. Joyful avoidance includes learning to be free of restrictions and boundaries which thus allows us to search for new meanings, interpretations, and purposes which avoid authentic spirituality.
For those of us who still have a spiritual conscience left, Watkin's Spiritual 100 List is entertaining; which can be easily satirized.