A spiritual experience is a combination of the sensation of inner peace, awe and enlightenment, which culminates in a reverence for nature and life, and sincere self-reflection about the cosmos and oneself.
A spiritual person is someone who lives a self-examined life and has his mind on “higher” things, not obsessed with property or personal gain, but is passionately devoted to a belief about the meaning of life and the path to human happiness.
Spiritual experiences are potentially beneficial, contributing to the quality of human life and they often produce emotional harmony and contentment, clarity of thought and perspective. Spiritual experience leads to and reinforces the spiritual lifestyle.
There are several paths to spirituality. First, meditation can be a path to spiritual enlightenment and ought to be mastered by all. It can have beneficial effects on self-understanding and health. Second, an appreciation of science can be a path to spiritual awakening: by taking in the awe of nature and the complexity of the cosmos, can give a spiritual awakening, a profound reverence and amazement in the face of breathtaking beauty and the immense powers of the nature.
"Science is not only compatible with spirituality; it is a profound source of spirituality. When we recognize our place in an immensity of light years and in the passage of ages, when we grasp the intricacy, beauty, and subtlety of life, then that soaring feeling, that sense of elation and humility combined, is surely spiritual" – Carl Sagan
Any devoted and true philosopher is a spiritual person who has spiritual experiences.
Richard Carrier – Sense and Goodness without God: A Defense of Metaphysical Naturalism.