Evelyn Underhill said this quote

Held tight as it seems to you in the finite, committed to the perpetual rhythmic changes, the unceasing flux of natural life— compelled to pass on from state to state, to grow, to age, to die— there is yet, as you discovered in the first exercise of recollection, something in you which endures through and therefore transcends this world of change. This inhabitant, this mobile spirit, can spread and merge in the general consciousness, and gather itself again to one intense point of personality. It has too an innate knowledge of— an instinct for— another, greater rhythm, another order of Reality, as yet outside its conscious field; or as we say, a capacity for the Infinite. This capacity, this unfulfilled craving, which the cunning mind of the practical man suppresses and disguises as best it can, is the source of all your unrest. More, it is the true origin of all your best loves and enthusiasms, the inspiring cause of your heroisms and achievements; which are but oblique and tentative efforts to still that strange hunger for some final object of devotion, some completing and elucidating vision, some total self-donation, some great and perfect Act within which your little activity can be merged.