As to what the special concerns of poetry are, the tradition provides no definitions. It presents itself as the definition of them, with the burden of proof put upon the poet of justifying the implicit meaning of the tradition as the union of the highest human concerns within the bounds of poetic expression. Thus it is that the general human weakness of want of distinctness of conception of the highest human concerns has been endowed in poetry with supplementary strength: poetry, that is, identifies commitment to its mode of expression with a commitment to exclusive preoccupation with these concerns, and in so doing represents itself as a plane of sensibility on which spiritual height of being is concretely realizable. In choosing my role of poety, I recognized this traditional allocation by poetry to itself of an area of experience of an immediate, absolute, life-purifying quality of spirituality, and I accepted poetry without reservation as having demarcated this area of potentially occupiable in distinct forms of consciousness, real functions of being, exactly congruous translation of the occupation of it into words.

--Laura Riding

The same could be applied to any tradition which relies upon regular practice for its worth and existence, such as painting, music, meditation, writing, yoga, reading, nature observation. And I would agree. These can embody the practioner with a form of spirituality. That which we do, is who we are. And the more focused and the more demanding for what we do, the more absorptive it can be for the practitioner.