Faith in the name of God and Guru can cause miracles in life. Read this experience of the Direct Disciples of Sri Ramakrishna. The incidents occured after Sri Ramakrishna Left his Physical Body.
Referring to Sri Ramakrishna's disciples, this is what Sri Sarada Maa said.......
Holy Mother said, 'Sri Ramakrishna accepted his disciples after thoroughly examining them. What an austere life they led at the Baranagore monastery after HIS passing away! Niranjan (Swami Niranjanananda) and the others often starved themselves. They spent all their time in meditation and prayer. One day these young monks were talking among themselves: 'We have renounced everything in the name of Sri Ramakrishna. Let us see if he would supply us with food if we simply depend upon HIM. We will not tell anybody about our wants. We will not go out for begging!' They covered thier bodies with sheets of cloth and sat down for meditation. The whole day passed. It was late at night. They heard somebody knocking at the door. Naren (Swami Vivekananda) left the seat and asked one of his brother monks, 'Please open the door and see who is there. First of all, notice if he has anything in his hand.'