By definition of word Spirituality means - the quality of being concerned with the human spirit or soul as opposed to material or physical things.
If you ever tried to understand yourself, then you are on spiritual path. Any effort made to understand who you are and how energy functions within yourself; then you are unfolding spiritual processes. It is a certain way of being, where you can use your energies in most efficient way.
The human race, consistently action to attain peace, joy and wellness. However, most of us try to find them externally, through various entertainment medias, people or objects. And that is the mistake we do. If peace, joy, happiness can be sourced through various external practices, then probably many people would have attained it already, but this is not possible. It lies within you, you just need to uncover and experience it.
To achieve peace of mind, you need to work upon your body, mind, energies and emotions through yoga, meditation and food habits. Combination of all of them is spirituality.