“Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return.”
Leonardo da Vinci

Soaring means conquering not only the sky you are flying in but the whole nature which surrounds you.
You don’t need any kind of power or energy but the one from the nature and, most important, the one from your mind.
You must establish a visceral relationship with your glider, which becomes vital part of your body. It will act as an extension of your senses in understanding the external weather for gaining the right speed and quote.
Two are the most important aspects for a pilot: understanding the external conditions (mainly of the weather) and making the right decisions, at the right time.
“It’s a managers’ sport.”
Leonardo Brigliadori
You must accept the limits: yours (of your experience and personal capacity) and the ones of the nature.
You will learn everyday, for every flight.