It is not a pumping-in from the outside that gives wisdom. It is the power and extent of your inner receptivity that determines how much you can attain of true knowledge, and how rapidly.
Sri Sri Paramahansa Yogananda
The deceptive part is you may think you have gone within and got inspiration
But there are a few cautions. I have mentioned it many times – inspiration from within is there when sushumna Nadi is open, you hear celestial music, etcetera
These signs are rare
Rest of the so called inspiration is fluke. Hit or miss
Bhavin