Personality development can harm you rather look into shadow work.
Vidya will take you to right place. Avidya will take you to wrong place.
Jungs shadow work is a good tool to jump into deep inside mind.
Entire purpose of Upanishads is to transcendent You beyond the limitations of mind and senses.
Understand Psychology is developed to work with sick peoples. Not for transedenting.
Shadow work helps us to clear our thought and action so that we can approach something beyond.
To experience something beyond it is essential to get four states of consciousness fully.
Consciousness will expand and explode like the universe.
To understand something which is beyond senses we needed this.
Fourth state of consciousness
Understanding sushupti.
Are we sleeping and dreaming fully?