Introduction:
The king was advised to go to magicians due to several reasons. Magicians were believed to possess supernatural powers and the ability to communicate with mystical entities. Seeking their guidance and assistance was a common practice during ancient times. This answer will delve into the reasons behind the king's decision to consult magicians.

1. Divination and Prophecy:
Magicians were often regarded as skilled diviners who could predict the future. They claimed to have the power to communicate with deities, spirits, or other supernatural beings. The king might have sought their help to gain insights into future events, such as the outcome of wars, success in endeavors, or potential threats to the kingdom.

2. Protection and Security:
Magicians were reputed to possess knowledge of spells, charms, and rituals that could protect individuals and kingdoms from harm. They were believed to have the ability to ward off evil spirits, curses, and other supernatural dangers. The king may have sought their assistance to safeguard himself, his family, and his kingdom against any potential threats.

3. Healing and Medicine:
Magicians were often associated with healing practices and knowledge of herbal remedies. They were believed to possess the ability to cure ailments and diseases using supernatural means. The king might have consulted them to seek remedies for his own health issues or to ensure the well-being of his subjects.

4. Solving Mysteries and Enigmas:
Magicians were considered to be skilled problem solvers and riddle masters. They were believed to possess knowledge and wisdom beyond ordinary individuals. The king may have approached them to seek solutions to complex problems, unravel mysteries, or decipher enigmatic messages or symbols.

5. Religious and Spiritual Guidance:
Magicians often had a deep understanding of religious and spiritual practices. They were knowledgeable about ancient rituals, sacrifices, and ceremonies. The king might have sought their guidance to ensure the favor of the gods, perform religious rituals correctly, or seek forgiveness for any wrongdoing.

Conclusion:
The king's decision to consult magicians was rooted in the belief that they possessed supernatural powers and knowledge that could benefit him and his kingdom. Whether it was divination, protection, healing, problem-solving, or spiritual guidance, magicians were considered experts in these domains, making them a valuable resource for the king's needs.

It is necessary to look into the future. and only magicians could do that. the king therefore would have to go to magicians.