The Ganges, emanating from the toe of Lord Vishnu, purifies the three worlds, the upper, middle and lower planetary systems. Similarly, when one asks questions about the pastimes and characteristics of Lord Vasudeva, Krishna, three varieties of men are purified : the speaker or preacher, he who inquires, and the people in general who listen.
One should not be impatient in discharging devotional service, but should take instructions from the spiritual master and execute them with patience, depending on the mercy of guru and Krishna. The successful execution of Krishna conscious activities requires both patience and confidence.
If there is some earthquake or there is some danger, naturally, spontaneously, we pray but we forget it. The tendency of offering prayer to the Lord at the time of danger is automatic. So we should know that we are in danger. We are in this material condition of life means we are in danger. Therefore, we should pray.
No conscious prayers go in vain. They are transmitted positively. Any prayer you offer to your Spiritual Master and Spiritual Master is conveyed to Krishna. No sincere prayers go in vain.