(Sanskrit पुरुष) A term with many potential meanings, depending upon context. Ultimately, "supreme self or being." It can also mean "soul, spirit, person, people."
"Behind this world show, behind this physical phenomena, behind these names and forms, behind the feelings, thoughts, emotions, sentiments, there dwells the silent witness, thy immortal Friend and real Well-wisher, the Purusha or the World-teacher, the invisible Power or Consciousness." - Swami Sivananda, God Exists
"That secondless Supreme Being, who resides in the chambers of your heart as the Inner Ruler or Controller, who has no beginning, middle or end, is God or Atman, or Brahman or Purusha or Chaitanya or Bhagavan or Purushottama." - Swami Sivananda