Crapshoot

Nothing is definite
so count on this:
life is a novel flight,
all hit and miss.

Nothing is forever
so count on this:
life is a time lever,
all hit and miss.

Nothing is preamble
so count on this:
life is a big gamble,
all hit and miss.

Nothing is revisit
so count on this:
life is a chancy fit,
all hit and miss.

Nothing is positive
so count on this:
life is a leaky sieve,
all hit and miss.

Nothing is absolute
so count on this:
life is any crapshoot,
all hit and miss.