Everything in creation emits vibrations, but the ability to feel them comes only with Kundalini awakening. Once Kundalini is awakened, vibrations can be felt on the palms of the hand, in the body and on top of the head as a cool or warm breeze. A person or a thing emitting cool breeze (not cold) is balanced and spiritually pure. Hot breeze or tingling or uncomfortable vibrations indicate an imbalance or a lack of harmony.
Once you have experienced the cool breeze on the hands, it is possible to detect similar vibrations emitted from other objects or even situations.