Funny...I'd learned that in my yoga practice. When I first began to practice and much later to teach, I followed the recipes of my teachers. Most of the time that came out okay. But I began to meet teachers who weren't offering recipes but were teaching me to cook. Try this, taste it. That's when my yoga practice really grew and my teaching felt authentic.
Here's a mudra to try...vajrapradama mudra...a gesture of unshakeable trust.
Interlace your fingers lightly, your thumbs are free. Place your hands across your chest. The feeling of your hands on your own heart will have an immediate effect but rest with it awhile. Taste it. You could look up more information on the internet. You could find a recipe for this mudra. But perhaps just see how it feels to you. How long do you want to sit with it? Do you rest your hands on your chest or away from your body? How is your breathing affected? Taste it. Trust yourself.