During Gurpurab, the teachings of Guru Nanak Dev Ji are prominently highlighted, focusing on core principles such as the oneness of God, equality among all people, and the importance of honest living and selfless service. Guru Nanak emphasized that all human beings, regardless of caste, creed, or gender, are equal in the eyes of God. His teachings encourage followers to engage in 'Seva' (selfless service) and to remember God's name through prayer and meditation. The celebration of Gurpurab serves as a reminder for Sikhs to embody these teachings in their daily lives, fostering a sense of community, compassion, and spiritual growth.