In many schools of Vedanta, Buddhism and Sufism, beyond extinction of the finite mind (Vedic nirodhah, Buddhist nirvana, Sufi fana) lies the state of Perfection (jivanmukta or liberated while living in the body, tathagata or gone to Suchness, baqa or abiding). In this model, the "holy sparks" are the saints (Vedic Satpurusha, Buddhist Bodhisattva, Sufi Pir) who see God always and everywhere, but who have not yet realized Union (Vedic Aham brahmasmi or "I am Reality", Buddhist Prajnaparimita or the Wisdom that reaches the other shore and proclaims the identity of Nirvana and Samsara as absolute Oneness, and Sufi anal Haqq or "I am Truth").
Where we would part company is in the one fact, and a very important fact, is that we believe that man cannot find God. God comes to find His own, and that is all summed up in the life and death, and resurrection of Jesus Christ. And that my friend is all the bible is about be it OT or NT, no big mystery and no need to sit on a lotus and eat ambrosia to figure it out.
Thank you for your lesson in Eastern theology. You seem, however, not at all versed in Taoism. The Devine spirit is in us all and the only place one needs to look to find it is within ourselves. My curosity is about why so many serious seekers of Jesus have such drastically opposing views on what the Bible means - just a simple question that everyone dances around with scriptural quotes but no answers.