Gross Military Science
Dhanur-veda was taught by Dronacharya with all its confidential secrets of throwing and controlling by Vedic hymns. Gross military science is dependent on material weapons.
Offering Prayers Properly
If we are serious & sincere devotees, the Lord will give us the intelligence to offer prayers properly.
Distributing Books – A Valuable Service
These books are so potent that anyone who reads them is sure to become krishna Conscious, so it is a very valuable service to distribute our books.
Gratitude
Every living entity, especially persons in the human race, must feel grateful for the benedictions offered by the grace of the Supreme Lord.
Srimad Bhagavatam 3.19.36,
Srila Prabhupada