The knees are symbolic of prayer and supplication, and of emotional commitment.
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Kneel, Knees Submissive humbleness, i.E. Swollen, painful knees have had to submit excessively
The Portions Between the Navel and Knees If any portion between the navel and knees is seen as exposed, it means a person’s secrets will be divulged to the people. How much will be divulged depends on how much of that portion is exposed.