Spirituality involves the recognition of a feeling or sense or belief that their is something greater than myself. Most of us think that spirituality means to leave the world and live like a saint but it is not . In reality , if you cultivate your body, mind ,emotions and energies to a certain level of maturity ,something else blossoms within you -that is what is spirituality. Spirituality is not confined to a specific religion . You can be spiritual without being religious.
In Hinduism , the enlightenment of spirituality is given to Arjun who is going to rule the empire in future .Arjun will be having all the luxury in future .But lord Krishna has enlightened Arjun with the knowledge of spirituality by chanting shlokas. In a nutshell spirituality is not letting your outside factors affect your mind.
अनन्याश्चिन्तयन्तो मां ये जनाः पर्युपासते । तेषां नित्याभियुक्तानां योगक्षेमं वहाम्यहम् ॥