Yoga Sūtra Chapter One verse 45
सूक्ष्मविषयत्वमं चालिङ्गपर्यवसानम् ॥४५॥
sūkṣma-viṣayatvaṃ ca-aliṅga-paryavasānam ||45||
And the ultimate limit of subtle objects is the unmanifest.
sūkṣma - minute, small, fine, thin; acute, subtle, keen; an atom, intangible matter; the subtle all-pervading spirit, Supreme Soulviṣaya - an object of sense; anything perceptible by the senses; any object of affection or concern or attentionca - andaliṅga - unmanifestparyavasāna - ultimate limit; terminus; conclusionCommentaries and Reflections
Commentary by Paul Harvey:
The ultimate limit of gross and subtle objects,
as choices for meditational unity,
is the unmanifest state of matter.