Stanislavsky students practiced using their senses to create a sense of reality on stage. For example, if their character just walked indoors and it was snowing outside, they may work on an exercise to remember what being outdoors in the snow feels like so they can have a strong sense of where they're coming from.
Here's a quick example of how you would approach that type of exercise... Close your eyes and imagine you are outdoors in the snow, then ask yourself the following five questions:
What do you see?Is the snow pristine? Muddy? Is it sparkling in the sun? Is it more of a dark cloudy day?
What do you smell?How cold is the air as it enters your nostrils and goes down to your lungs?)
What do you hear?Is it more quiet