Final answer:
The beginning of Act V does not specify for whom a grave is dug in the provided excerpts. These references hint at literary explorations of death and burial rather than details of a specific narrative or character. The grave's significance is deeply rooted in symbolism and themes of mortality across various texts.
Step-by-step explanation:
At the beginning of Act V, the grave being dug is not for a named individual in a specific play text based on the excerpts provided. It appears that these excerpts reference various literary and dramatic treatments of death, graves, and burial rites. Therefore, without a specific play or text mentioned, it's impossible to determine for whom the grave is meant. Literary representations of graves are rich in symbolism and often serve to remind audiences of mortality, the afterlife, and the cultural practices surrounding death.
Excerpts such as 'The grave's a fine and private place,' and 'Now therefore, while the youthful hue Sits on thy skin like morning dew,' suggest a poetic contemplation of life's transience, common in literature.
Literary works frequently explore themes of death, burial, and the metaphysical, sometimes even depicting scenes involving resurrection or the weighing of souls, as hinted in the various excerpts you provided. These themes are used to explore deep philosophical questions about human existence, morality, and the meaning of life or afterlife.