When we take off our shoes, we stand before God having relinquished any human claim to the earth beneath our feet. Shoes are the simplest of our possessions, and when we stand shoeless, we are wholly human before God, whether we are Christian or Sikh, Muslim or Hindu. Not that all these places [of worship] are holy, but something happens there, in the presence of which I should stand attentive, quiet, and barefoot in reverence. That something is a relationship with the divine, the one we call God.
To Practice This Thought:
When entering a place of worship, formal or informal, take off your shoes.