King Dasaratha remembers a curse placed on him during his sorrow.

Explanation:
King Dasaratha was the ruler of Ayodhya and the father of Lord Rama. He was a wise and virtuous king who was greatly loved by his people. However, he had one deep sorrow that haunted him throughout his life.

The curse that King Dasaratha remembers was placed on him by a sage named Shravana. Once, while on a hunting trip, Dasaratha accidentally killed a young boy who was the son of the sage. The sage, filled with grief and anger, cursed Dasaratha that he too would suffer the pain of losing a beloved son.

This curse had a profound impact on King Dasaratha's life. He longed for a son who would continue his lineage and rule Ayodhya after him. However, he and his three wives, Kausalya, Kaikeyi, and Sumitra, were unable to conceive a child for a long time.

Eventually, the sage Vasishtha advised Dasaratha to perform a special yagna (sacrifice) to please the gods and seek their blessings for a son. As a result of this yagna, the gods sent a divine dessert which was to be consumed by his queens. This resulted in the birth of four sons - Rama, Lakshmana, Bharata, and Shatrughna.

However, the curse of Shravana still lingered in Dasaratha's mind. He feared that one day he would have to face the pain of losing his beloved son. This fear turned into reality when Kaikeyi, influenced by her maid Manthara, asked Dasaratha to crown her son Bharata as the king and send Rama into exile for fourteen years.

The news shattered Dasaratha, and he was overcome with grief and sorrow. The curse had come true, and he was now experiencing the pain of losing his beloved son, Rama. The memory of the curse haunted him during this difficult time and added to his sorrow.

In conclusion, King Dasaratha remembers a curse placed on him by the sage Shravana during his sorrow. This curse played a significant role in his life and eventually led to the exile of his beloved son, Rama. The memory of the curse haunted Dasaratha and added to his grief during this challenging period.