Religion may involve spirituality, but spirituality does not necessarily involve religion. Here’s how I differentiate (your mileage may vary):

Religion

Relationship with a God or Gods

• Beliefs
  
• Metaphysical or Supernatural Reality
• Faith
  
• Dogma
• Ritual
• Prayer
  
• Salvation
• Eternal reward

Spirituality

Qualities of the Human Spirit

• Love
• Compassion
• Patience
• Tolerance
• Forgiveness
• Sense of Responsibility
• Sense of Harmony
  
• Things that bring real happiness to ourselves and others
• Contentment
• Joy