Once an old woman came to Buddha and asked him how to meditate. He told her to remain aware of every movement of her hands as she drew the water from the well, knowing that if she did, she would soon find herself in that state of alert and spacious calm that is meditation.
Just as if you put your finger into water, it will get wet, and if you put it into fire, it will burn, so if you invest your mind in the wisdom mind of the Buddhas, it will transform into their wisdom nature.
If the mind is not contrived, it is spontaneously blissful, just as water, when not agitated, is by nature transparent and clear.