Figures of Speech : Simile, Soliloquy

Simile:

A simile is an explicit comparison between two different things. Usually "as" and "like" are used in it. Example:

                                    

 We die

As your hours do, and dry

Away

Like to the summer's rain;

(Robert Herrick: "To Daffodils")

Here in these lines human life has been compared to the summer's rain to suggest that a man's life is as brief as a drop of summer's rain that takes no time to be evaporated. Writers use similes very frequently as these help them illustrate their meanings.
Figures of Speech : Irony,Litotes,Literal Meaning ,Machinery ,Metaphor

Soliloquy:

A dramatic technique of speaking alone on the stage. It is a dramatic convention of exposing to the audience the intenti0nS' thoughts and feelings of a character who speaks to himself while no one remains on the stage. For example, four lines of Hamlet’s famous soliloquy are quoted here:

To be, or not to be: that is the question:

Whether’t is nobler in the mind to suffer

The slings and arrows of outrageous fortune,

Or to take arms against a sea of troubles,
Literary Terms :Alliteration, Allusion, Anapest , Anti-climax or Bathos

A soliloquy is different from an aside. Though, both in soliloquy and in aside only one character speaks, in aside some other characters remain present on the stage but in soliloquy none is allowed to be present on the stage. A soliloquy is also different from the dramatic monologue. The soliloquy is a dramatic technique but the dramatic monologue is a form of poetry in which a single speaker speaks to a silent listener who responds by physical gestures.