Dara-Shikoh had a sister, the Princess Fatimah, to whom he was deeply attached. As soon as he had become a disciple of Mullah Shah and his heart had been opened to the intuition of the spiritual world, he hastened to inform his sister. This news made such an impression on the mind of the Princess that she wrote to the Sheikh several letters full of humility and devotion. He read them all, but made no reply for more than a month, till he was convinced that Fatimah was animated by an invincible resolution. At last he accorded his sympathy to her also, and admitted her to the circle of the initiates. The Princess persevered ardently in these mystical studies, and received the instructions of her spiritual guide by correspondence. She attained to such perfection that she arrived at intuitive knowledge of God and union with Him. Although the Sheikh was full of affection for all his disciples, he had a particular regard for her, and was in the habit of saying that "she had attained to such an extraordinary degree of knowledge that she was fit to be his successor." Mullah Shah was now old and infirm; he had passed several winters at Lahore, surrounded by the care and attention of his friends and pupils. In the year 1655 A.D., the Emperor wrote to him to invite him to pass the winter with him at Shahjahanabad, his ordinary residence, but the Sheikh was beginning to suffer from weakness of the eyes, and did not feel strong enough to undertake the journey. For some years he remained in Kashmir, and would often say, "The theosophist ought to profit by length of life. My life is approaching its end; let us then enjoy our stay in Kashmir, and not leave it." In A.D. 1658 Aurangzeb, Dara-Shikoh's younger brother, seized on the person of his father the Emperor Shah-jehan, whom he kept in confinement for the rest of his life, and had Dara assassinated in prison. Aurangzeb was a bigoted Muhammadan, and his accession to the throne threatened to have serious consequences for Mullah Shah. As soon as he had assumed the reins of government, the clerical party began to represent to him that Mullah Shah taught doctrines contrary to revealed religion. There were not wanting witnesses on the other side, but the Emperor, on hearing the complaints against Mullah Shah, sent an order to the governor of Kashmir to send him to the capital. The governor pleaded for a delay on account of Mullah Shah's advanced age and weakness till he was strong enough to make the journey. A year thus passed by; some verses which Mullah Shah composed in honour of Aurangzeb made a favourable impression on the Emperor, and the Princess Fatimah having interceded on behalf of her old teacher, Aurangzeb revoked his first order, and merely enjoined him to take up his residence at Lahore as soon as possible.