Here is the story of the Heart Sutra:
Avalokitesvara Bodhisattva, when practicing deeply the Perfect Wisdom clearly saw that all five Skandhas are empty and passed beyond all suffering.
Sariputra, form does not differ from emptiness: Emptiness does not differ from form. Form then is emptiness. Emptiness then is form. Sensation, perception, volition, and consciousness, are also like this.
Sariputra, all Dharmas are marked with emptiness: not born and not dying, not stained and not pure, not gaining and not losing. Therefore, in emptiness there is no form, no sensation, perception, volition or consciousness. No eye, ear, nose, tongue, body or mind; nor form, sound, smell, taste, touch, or Dharmas; no realm of sight 'til we come to no realm of consciousness; no ignorance and no ending of ignorance, 'til we come to no old age and death, and no ending of old age and death. No suffering, origination, extinction, or path. No wisdom, and no attainment, with nothing to attain.
Because the Bodhisattva is the Perfect Wisdom of emptiness, his mind has no hindrance. Having no hindrance, there is no fear and far from all fantasy, he is dwelling in Nirvana.
Because all Buddhas of the three times practice the wisdom of emptiness, they gain complete and perfect enlightenment.
Therefore know, that Perfect Wisdom, is the great holy mantra, the great bright mantra, the wisdom mantra, the unequaled mantra, which can destroy all suffering---truly real and not false. So he gave the Perfect Wisdom mantra, which goes;
Ga te Ga te,
Pa ra Ga te,
Pa ra sam Ga te,
Bod hi Sva ha.
Meaning:
Gone, gone
Gone beyond.
Gone completely beyond,
Praise to awakening.
To receive the blessings of the Heart Sutra, chant it for 3, 7 or many times, and then dedicate the merits to someone. A friend, yourself, your family. Just remember not to use any negative words in the prayer.
Sounds crazy, I know; I'm just writing what I've been told. For example, wishing someone to be healthy is much more effective than wishing someone not to be sick, because the word "sick" is negative and the mind may linger on that word, thus sending out negative vibrations.
Here is an example dedication:
I want to dedicate this merit to my husband so that he will have more compassion and wisdom, thus he and I can have a harmonious relationship. Also, I want to dedicate this merit to myself so that I can be healthy and happy.
You can also dedicate the merits to all the beings that you have been indebted to in your past lives and this life, because we all make mistakes and (sometimes intentionally, other times unintentionally) hurt other people along the way.
This is an example of such a dedication:
I also want to dedicate this merit to all the beings whom I was indebted to in my past lives and this life, so that they can have more compassion and wisdom, and a happy and auspicious life. I always say that right after my morning chanting of the Medicine Buddha Sutra and Heart Sutra. I also dedicate the merit to my family members. relatives, friends, and my patients of past lives and this life, so that they can have more compassion and wisdom, and a happy and auspicious life.
Let me know if you try this and if you see any changes in your life!