On behalf of Måns Broo, who is unable to post to the list, I should like to know if anyone is able to provide a source for this definition of dhyāna, cited in a 16th-century bhakti text: kevalamanaḥsaṃyogamātrarūpaṃ smaraṇaṃ lakṣyate dhyānam?

Thanks in advance,
Martin Gansten