>>7750875This article describes the reality check that most commonly involves the dreamer pushing their finger against their palm, and willing it to pass through.
In real life, laws of physics prevent us from falling through floors or from poking our fingers into hard objects. Hence, if you were to will your left finger to pass through your right palm, or vice versa, it hopefully wouldn't pass straight through. However, in a dream, natural forces can be disregarded. Hence, the finger can pass through the palm and out the other side. If you can do this, it is in all probability a dream; if it is not, it is suggested you see a doctor.
This reality check is useful in that it requires no additional objects other than your own body, and requires little effort. However, you may find that the dream deceives you by stopping the finger at the palm - this is probably due to an internal doubt that the experience is a dream.
Try to put your finger through your palm. If you finger passes through your palm with no problems, it means you are dreaming. If it takes too long to have an outcome, or if you are not sure, try another reality check, as this one could not be working for you.