Question: How do you mentally prepare yourself to lift a weight that is much heavier than your training weight?

Sri Chinmoy: You have to realise that the physical world is not the only world. The mental world is as real as the physical world. If you are having difficulties at a particular place, then you can go to another place. Who knows, that place may be more inspiring and encouraging. If you don't get inspiration to practise running on the running machine, then you can go outside where there are beautiful trees and fresh air. Then, once you get inspiration and joy from the outer world, from nature's beauty, you may be more inspired to practise on the running machine. Similarly, if you are not getting enough joy from your training on the physical plane, then you can enter into the inner world and meditate. On the mental plane first you imagine that you are lifting weights beyond your physical capacity. Then you can bring that mental capacity to the physical plane and turn your imagination into reality.

From:Sri Chinmoy,Soul-illumination-shrine, body-preparation-temple, part 1, Agni Press, 1985
Sourced from https://srichinmoylibrary.com/sis_1