As per the Mahan Kosh by Bhai Kahan Singh Nabha, the Punjabi word ‘Sehajdhari’ means as followings:-
ਸਹਜਧਾਰੀ :- ਵਿ – ਸਹਜ (ਗਯਾਨ) ਧਾਰਣ ਵਾਲਾ ਸੁਖਾਲੀ ਧਾਰਣ ਵਾਲਾ, ਸੋਖੀ ਰੀਤ ਅੰਗੀਕਾਰ ਕਰਨ , ਸਿੱਖਾਂ ਦਾ ਇੱਕ ਅੰਗ, ਜੋ ਖੰਡੇ ਦਾ ਅਮ੍ਰਿਤ ਪਾਨ ਨਹੀਂ ਕਰਦਾ ਅਤੇ ਕੱਛ ਕ੍ਰਿਪਾਨ ਦੀ ਰਹਿਤ ਨਹੀਂ ਰਖਦਾ, ਪਰ ਸ਼੍ਰੀ ਗੁਰੂ ਗ੍ਰੰਥ ਸਾਹਿਬ ਬਿਨਾ ਆਪਣਾ ਹੋਰ ਧਰਮ- ਪੁਸਤਕ ਨਹੀਂ ਮਨਦਾ।
This means one who is slowly slowly adopting the divine knowledge. This also stands for one who is adopting an easy going path. Further, Bhai Sahib confirms them to be a part of Sikhism but have not been initiated into Khalsa Panth and they do not wear the mandatory Kachera or long underwear and the Kirpan but believes and have faith only in Guru Granth Sahib jee.
However,Sikh Rahit Maryada makes no mention of the term Sehajdhari Sikh. But Section 4. (Chapter X). (Article XVI)(i) of the Sikh Rahit Maryada, which is applicable to all Sikhs (including Sehajdhari) makes it mandatory to keep the Kesh or heir of his children intact. A Sehajdhari, therefore, is one who has entered the path of Sikhism and he will continue to be a Sehajdhari till he fully accepts the moral and spiritual vows of Sikhism, than to be called a practicing Sikh.
But, if we go by the meanings of the word ‘Sehaj’ than it stands for ones thoughts or his beliefs, Sidak, faith etc. Than this word when becomes ‘Sehajdhari’ as a noun it means more for ones spiritual stability (ਆਤਮਿਕ ਅਡੋਲਤਾ) and calmness of his inner mind or soul in adapting to the truth.
If so, than we all who have been initiated into Khalsa Panth’s fold or are Amritdharis, are actual Sehajdhari first.
I request my learned friends at SPN to put some more light on this crucial aspect.
Regards & Guru Fateh