Spontaneity doesn't mean unserious/not making clear decisions, or any other prevalent childish notions.
Clarity for clear decisions/actions/thought also comes from the same spontaneity if we are truly spontaneous and not lost thinking of spontaneity/being spontaneous projecting ideas motivated by the unconscious/ignorance.
In other words, flow of intelligence is ever available if we stop resisting the undercurrent of being and just stop confusing one thing with another.
Do away with falling for the very fragmented mind.
Stop fooling yourself.