For beginners it’s important to understand the application of impermanence and the concept of conditioned phenomena. Ultimate reality or the unconditioned is a seperate category. The ordinary uninstructed person would find the idea of meditation on impermanence or contemplation of death repulsive. Even on Buddhist forums the down to earth subject of impermanence does not feature often.
“Perceiving constancy in the inconstant,
pleasure in the stressful,
self in what’s not-self,
attractiveness in the unattractive,
beings, destroyed by wrong-view,
go mad, out of their minds.”—AN 4.49
“the repulsive in both the unrepulsive and the repulsive” is an exercise in developing mind control leading to equanimity:
"If he wants, he remains percipient of loathsomeness in the presence of what is not loathsome & what is. If he wants, he remains percipient of unloathsomeness in the presence of what is loathsome & what is not. If he wants — in the presence of what is loathsome & what is not — cutting himself off from both, he remains equanimous, alert, & mindful. Or he may enter & remain in the beautiful liberation. I tell you, monks, awareness-release through good will has the beautiful as its excellence — in the case of one who has penetrated to no higher release. [2]—SN 46.54
This extract of the Buddha instructing a student shows how the suttas should be read, and how at the beginner level there should be a concept of the unconditioned (ultimate):
“Lending ear, he hears (reads) the Dhamma. Hearing the Dhamma, he remembers it. Remembering it, he penetrates the meaning of those dhammas. Penetrating the meaning, he comes to an agreement through pondering those dhammas. There being an agreement through pondering those dhammas, desire arises. With the arising of desire, he becomes willing. Willing, he contemplates (lit: “weighs,” “compares”). Contemplating, he makes an exertion. Exerting himself, he both realizes the ultimate meaning of the truth with his body and sees by penetrating it with discernment.”—MN 95