SB 1.9 - The meaning of surrender
Śuka and the Kumāras, although situated in transcendence, became converted by another feature of bhāva and turned into pure devotees. Tribulations imposed upon the devotees by the Lord constitute another exchange of bhāva between the Lord and the devotees. Placing the devotees into material troubles delivers the devotee from illusory material relations. The difficulties the devotees experience are not prārabdha-karmas since they are given by the Lord alone. When material resources, the basis of material enjoyment, are withdrawn by the Lord, the devotee becomes fully attracted toward the transcendental loving service of the Lord. Thus the Lord snatches the fallen soul from the mire of material existence. Sometimes the Lord increases His devotee’s bhakti without giving problems to him. Thus it is said that no one knows the plan of the Lord. What stops one from being distraught in this world is unshakeable faith in Kṛṣṇa as one’s personal shelter, which is what śaraṇāgati means.