Kabir, who lived around the fourteenth-fifteenth centuries, is considered one of the most outstanding poet-saints of his time. Historians have attempted to reconstruct his life and period by studying compositions attributed to him and later biographical accounts. These compositions are found in three distinct, though overlapping, traditions. The Kabir Bijak is preserved by the Kabirpanth in Varanasi. The Kabir Granthavali is associated with the Dadupanth in Rajasthan. Many of his compositions are also included in the Adi Granth Sahib. Manuscript compilations of his verses were made long after Kabir’s death, and by the nineteenth century, anthologies circulated in print across regions like Bengal, Gujarat, and Maharashtra. Kabir's poems exist in several languages and dialects, some using the specific language of nirguna poets called sant bhasha. Others, known as ulatbansi (upside-down sayings), invert everyday meanings to hint at the difficulty of expressing the Ultimate Reality. Kabir drew upon a range of traditions to describe the Divine, using terms from Islam (Allah, Khuda, Hazrat, Pir), Vedantic traditions (alakh, nirakar, Brahman, Atman), and Yogic traditions (shabda, shunya).