Answer :

The other title may be:
1. Kashi Yatre
2. Grandmother's Willness (or) Grandmother's Determination.

The main idea of the lesson is:
1. To show the determination of the grandmother to read the Kashi Yatre by herself.
2.  To show that age is no bar for learning.
3. To show that one can do the impossible if one has will power to work.
4. To show that sincere efforts and determination always yield success.

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