General abstract nouns:
* Guidance: Emphasizes the direction and support provided.
* Advice: Focuses on the counsel and wisdom offered.
* Support: Highlights the emotional and practical assistance.
* Leadership: Emphasizes the influence and direction.
* Inspiration: Focuses on the motivation and encouragement.
More specific abstract nouns:
* Mentorship: Directly refers to the act or process of mentoring.
* Wisdom: Focuses on the knowledge and understanding shared.
* Experience: Emphasizes the practical knowledge and skills passed on.
* Influence: Highlights the impact the mentor has on the mentee.
The best choice will depend on the context and the specific meaning you wish to convey.