To reconcile the concepts of predestination and free will in Islam, a person should:

1. **Seek Knowledge**: Study Islamic teachings on *qadar* (divine decree) and free will through the Qur’an and Hadith to understand the theological framework.

2. **Reflect on Allah’s Wisdom**: Contemplate that Allah’s knowledge encompasses everything, including human choices, and His wisdom is beyond human comprehension.

3. **Embrace Trust (Tawakkul)**: Cultivate a sense of trust in Allah’s plan, recognizing that both predestination and free will serve a purpose in one’s life.

4. **Pray for Clarity**: Engage in prayer, asking Allah for guidance and understanding regarding their struggles with these concepts.

5. **Focus on Personal Responsibility**: Acknowledge that while Allah knows the outcome, individuals are still responsible for their actions and decisions.

By integrating these approaches, they can deepen their faith and trust in Allah’s plan while navigating the complexities of free will and predestination.