Kabir was a 15th-century Indian mystic poet and saint, known for his teachings on spirituality and devotion. He was a key figure in the Bhakti movement, which emphasized the importance of inner devotion and personal connection with the divine.

One of the main teachings of Kabir was the concept of oneness or unity with the divine. He believed that all beings, regardless of their religion or social status, are equal and connected to the same divine source. This idea of oneness is reflected in many of his dohas (short poems), such as "Jaise til mein tel hai, jyon chakmak mein aag, Tera saayi tujh mein hai, tu jaag sake to jaag" which translates to "Just as oil is present in a sesame seed, and fire is present in flint, your Lord is within you, if you have the awareness to see."

Kabir also rejected the idea of external rituals and ceremonies, and instead emphasized the importance of inner devotion. He believed that true devotion comes from the heart and not from external actions. In one of his dohas, he says "Kabir man nirmal bhaya, jaise Ganga neer, Pache pache har phire, kahat Kabir Kabir" meaning "Kabir's mind has become pure like the water of the Ganges, now everyone follows him, calling out "Kabir, Kabir."

Another important aspect of Kabir's teachings was the rejection of societal divisions and discrimination. He spoke out against caste and religious differences, and believed that all human beings are equal in the eyes of the divine. He often used simple and relatable examples in his dohas to convey this message, such as "Jati na poochho sadhu ki, poochh lijiye gyan, Mol karo talwar ka, pada rahne do myan" which means "Do not ask about a person's caste, ask about their knowledge. Do not judge someone by their sword, let them be who they are."

Kabir's teachings also emphasized the importance of self-reflection and introspection. He believed that true spiritual growth comes from within, and encouraged his followers to look within themselves for answers rather than seeking them externally. In one of his dohas, he says "Moko kahan dhoondhe re bande, main to tere paas mein, Na teerath mein, na moorat mein, na ekant niwas mein" meaning "Where do you search for me, O seeker? I am right here, not in pilgrimage, nor in idols, nor in solitude."

In conclusion, Kabir's teachings revolved around the idea of oneness with the divine, inner devotion, rejection of societal divisions, and self-reflection. His simple yet profound dohas continue to inspire and guide people towards a more spiritual and meaningful life.