Liar, Liar - Pants on fire?

Did you ever get the feeling
That all the world's a stage?
Not just the way ol' Will meant it,
But like it's really all a mirage?

He is, by day, a regular jock,
And, by night, a closet pianist.
She is apparently Ms. Trunchbull Reincarnated,
But dreams of full moons, dewey roses and silver mists.

One way on the outside,
Another way in-
But, I guess, the question is:
Would it count as sin?

If a son puts his mum's heart at ease,
Or if a boy wins true 'dream love'
With the aid of a tiny white lie,
Would it be chalked up in heaven above?

Sighhhh... Who's to say? Who'd know?
But this one thing I did figure:
Some lies win out, others bite back,
Yet it's hard not to envy the smooth liar!