Well deep discussion only happen with Vaheguru kirpa & most people are hesitant to discuss that, if that happened to them & those people are very few in between. One has to be dedicated day & night for that. No one will believe you if you try to explain any stages as that is beyond them. Looking inside is tough & its gungey di mathiaee.
ਖੰਨਿਅਹੁ ਤਿਖੀ ਵਾਲਹੁ ਨਿਕੀ ਏਤੁ ਮਾਰਗਿ ਜਾਣਾ ॥
Kẖanni▫ahu ṯikẖī vālahu nikī eṯ mārag jāṇā.
ਕਹੈ ਨਾਨਕੁ ਏਹਿ ਨੇਤ੍ਰ ਅੰਧ ਸੇ ਸਤਿਗੁਰਿ ਮਿਲਿਐ ਦਿਬ ਦ੍ਰਿਸਟਿ ਹੋਈ ॥੩੬॥
Kahai Nānak ehi neṯar anḏẖ se saṯgur mili▫ai ḏib ḏarisat ho▫ī. ||36||
ਸਤਿਗੁਰਬਚਨਕਮਾਵਣੇਸਚਾਏਹੁਵੀਚਾਰੁ॥