The “Key to Indoctrination” application provides text lessons that focus on teaching letters and their correct pronunciation. Lessons include:

1. **Detailed explanation of the letters’ exits**: Each lesson deals with how to pronounce the Arabic letters accurately, focusing on the correct locations in the mouth and throat.

2. **Illustrative examples**: The application displays text examples that show how to pronounce letters correctly within words and sentences.

3. **Error Alert**: The application points out common errors that users may make and provides tips to correct them.

These texts help users understand the basics of pronouncing letters correctly and improve their recitation and speaking skills.