Generate bodhicitta and do some tong-len. Then visualize that you are one with the deity, so your mind is in the state of dharmayaka. Everything is empty. I is empty; everything is empty. First what is appearing in space; that space is devoid of form. Space.
Then see the emptiness of the self. That is most important. The wisdom seeing emptiness experiences infinite bliss nondual with emptiness. Think, “This is my future result-time guru-deity’s holy mind dharmakaya.” Try to hold divine pride, thinking, “This is me.”
Try to continue with that, with your mind in dharmakaya experiencing infinite bliss nondual with emptiness. Just meditate on that, thinking, “This is my future result-time guru-deity’s holy mind, the actual dharmakaya.”
Just keep meditating on that until you become unconscious. So be unconscious in that state.