Sri Ramakrishna, also known as Ramakrishna Paramahamsa, was a 19th century Indian mystic and teacher who had a profound impact on Hinduism. His teachings, which were based on his own spiritual experiences, emphasized the universality of all religions and the importance of direct experience of the divine.

One of the major impacts of Sri Ramakrishna's teachings on Hinduism was the revival of the Bhakti movement. Bhakti, which means devotion, is a central aspect of Hinduism and Sri Ramakrishna's emphasis on the path of devotion and love for God inspired many people to deepen their spiritual practices and connect with the divine in a more personal way.

Sri Ramakrishna also emphasized the concept of "Sadhana" or spiritual practice, which involves disciplined efforts towards self-realization. He taught that through sincere and dedicated spiritual practices, one can attain direct experience of the divine and ultimately achieve liberation from the cycle of birth and death.

Another significant impact of Sri Ramakrishna's teachings was the promotion of religious harmony and tolerance. He believed that all religions lead to the same ultimate goal and that there are different paths to reach the divine. This message of inclusivity and unity resonated with people from all faiths and helped to bridge the gaps between different religious communities.

Sri Ramakrishna's teachings also had a strong influence on the concept of "Guru" or spiritual teacher in Hinduism. He emphasized the importance of a guru in guiding and nurturing a seeker on the spiritual path. His own relationship with his guru, Totapuri, was a testament to the power of this bond and his teachings inspired many to seek out a guru to guide them on their spiritual journey.

Additionally, Sri Ramakrishna's teachings brought a renewed focus on the importance of service and selfless actions. He believed that serving others was a way to serve God and that true spiritual growth can only be achieved through selfless service to others. This led to the establishment of the Ramakrishna Mission, a philanthropic organization dedicated to serving the poor and needy.

In conclusion, Sri Ramakrishna's teachings have had a profound impact on Hinduism, revitalizing its core principles and promoting religious harmony and tolerance. His message of love, devotion, and service continues to inspire millions of people around the world and his teachings remain relevant and influential in modern-day Hinduism.