A beautiful analogy is given with respect to a mother and her infant. An infant knows only his mother, he doesn't know what he would need or what he needs to take care of; everything is done by his mother. She make sure that he gets what he needs and take cares of those things which are essential for him, as well as ensures that he gets them when he needs them.
Similarly, God provides for the worldly and spiritual needs of his such undying devotees and also shelters those objects which he deems would be required by them.
A mother doesn't depend on the wisdom of her infant, she does what would be good for the development of the infant। Likewise and more, for such devotees God does what is good for them and depending on that gets them what they need and protects them. This reminds of Kabir's doha:
बिन मांगे मोटी मिले, मांगे मिले न भीक।
Literal English translation: One who doesn't ask, gets the pearls; but one who asks, gets nothing.
Hence, one who has submitted himself to God, prays to him with all his love and devotion, thinks of no one and nothing but Him, for such devotees God takes over the burden of their life. Thus the devotee is freed from all troubles of this world and beyond.
The essence of this post is: if you have faith in God and worship him, nothing can go wrong in your life.