In Vaishnavism, the guru plays a crucial role in guiding and shaping the spiritual journey of a devotee. The term guru literally means "dispeller of darkness" and is seen as a spiritual teacher who helps the disciple in attaining moksha or liberation from the cycle of birth and death.

The guru-disciple relationship is considered sacred and is based on mutual respect, trust, and surrender. The guru is seen as a living embodiment of the divine and is revered as a channel through which the devotee can connect with Vishnu and his avatars.

The guru is responsible for imparting spiritual knowledge, providing guidance, and helping the disciple in their spiritual practices. They are also expected to be a role model for the disciple, embodying the virtues and principles of Vaishnavism.

In Vaishnavism, the guru is seen as the mediator between the individual soul and the Supreme Soul. They are believed to possess a deeper understanding of the scriptures and have the ability to guide the disciple towards self-realization.

One of the main roles of the guru is to initiate the disciple into a specific mantra or deity worship. This initiation, also known as diksha, is seen as a sacred and transformative process that allows the disciple to establish a personal connection with the divine. The guru also provides guidance on how to perform rituals and ceremonies, such as puja and yajna, in a correct and meaningful way.

Apart from imparting spiritual knowledge, the guru also plays a crucial role in the emotional and psychological well-being of the disciple. They are seen as a source of comfort and support, and the disciple is encouraged to confide in them and seek their guidance in times of need.

In Vaishnavism, the guru is also seen as a spiritual friend, who walks alongside the disciple on their spiritual journey. They provide encouragement, motivation, and help the disciple overcome any obstacles or challenges that may arise.

In conclusion, the guru holds a significant position in Vaishnavism as the spiritual guide and mentor of the disciple. They are seen as the key to unlocking the path of devotion and ultimately attaining moksha. The relationship between the guru and disciple is one of utmost reverence, trust, and devotion, and it is through the guru's guidance that the disciple can attain the ultimate goal of Vaishnavism – union with the divine.