What according to your understanding liberates a writer from the constraints of a restricted imagination and a restrained style arising out of naïve reverence and limited cognizance of the aesthetics, design, style, and composition of celebrated fiction to emerge with his own style?
I have three suggestions:
Read. Read. Read. Especially read stuff you don't normally read. Get out of your comfort zone. Way out.
Think about what you have read, and ask yourself why it either works or doesn't work.
Challenge yourself with writing exercises that limit your word count, subject, point of view, or word choices so that you will be disinclined to rely on your usual writing habits.
This question reminds me of a very general piece of advice for all those seaking to expand their mental capacities:
Seek out that which contradicts your most firmly held beliefs
One shouldn't adopt new things simply because they are contradictory, simply experience them with an open mind.
Applied to the OP question:
Read that which you usually disregard
Interact with people you usually neglect
Visit places you usually avoid
We are, and always shall remain, captives of our own personal experience. We cannot demolish our personal prison walls. All we can hope, is that we may expand them until the feeling of constraint diminishes.