Spirituality is looking beyond the physical reality, acknowledging the existence and supremacy of God. Therefore, a person who seeks to discover and fulfil the purpose the Creator has from His creation qualifies to be called spiritual.
On the other hand, a person who is so preoccupied with the created things that he or she is not concerned about the Creator is called worldly. For, his or her perceptions and thoughts are based on the natural cravings of the self and the desires of the flesh. And, he or she looks at everything from the point of view of personal gains and sensual desires, with no regard for God's purpose.
On the surface, many things may appear to be common in a spiritual person and the worldly. For instance, both have to work hard to fulfil the basic needs of life, such as food, clothing, and shelter. But, the attitude of a spiritual person in fulfilling these needs will be different from that of the worldly.
For example, a spiritual person will eat his or her daily food with gratitude towards God, the provider of everything. In addition, he or she will have a sense of responsibility to spend the energy gained to accomplish the purpose of God in his or her life by way of contributing in God's mission of making this world a better place.
Not so with the worldly, who will eat only for the sake of satisfying his or her hunger, spending the energy received from that food to fulfil other desires of the body. As if God provides food to humans so that they can lead an indulgent and egocentric life, with “fun” as the only purpose.
Besides, certain traits in a person can tell whether he or she is spiritual or worldly. Take for instance addiction to smoking, drinking, and pornography, or a heart full of jealousy and hatred - things that are undeniably worldly. Whereas, attributes such as love, joy, peace, and holiness are known to be the attributes of God, who is the author of spirituality.
Let us honestly evaluate ourselves to see if we are spiritual or worldly.