All perfection is in you, it is your nature and there is no such doctrine, able to make you more perfect. There is no ideal to aspire, nor any development necessary to do. Striving for perfection is nothing more than the desire of the conditioned mind, lost in its selfish need to improve its separation in objective reality.
Be attentive towards yourself and what is going on, comprehend your true nature. Keep things simple, no matter what, do not stop, do not evaluate that what is happening. Take things as they are, be aware of each occurring event, each arising feeling.