Ek baar Maata Parvati aur Bhagwan Shiv Kailash par chaupar (paasha) ka khel khel rahe the. Khel mein haar-jeet ka nirnay karne ke liye koi teesra vyakti vahaan na tha. Tab unhone ghaas-phoos ka ek putla banaaya aur usmein praan daalkar use nirnaayak (referee) niyukt kiya aur khel aarambh kiya.
Khel kai baar khela gaya aur har baar Maata Parvati hi vijayi rahin. Par khel ke ant mein, jab us baalak se poochha gaya ki kaun jeeta, to bhool-vash ya bhay-vash usne Bhagwan Shiv ka naam le diya. Galat nirnay sunkar Maata Parvati krodhit ho gayin aur baalak ko langda (apaahij) hone ka shraap de diya.
Baalak ne girgiraakar kshama maangi — "He Maata, maine jaan-boojhkar asatya nahi kaha, yeh meri anjaane mein hui bhool hai." Daya-mayi Maata ka hriday pighal gaya. Unhone kaha — "Shraap to vyarth nahi jaa sakta, par main upaay bataati hoon. Yahaan Naag-kanyaayein puja karne aayengi; ve tujhe Sankashti Chaturthi ke Shri Ganesh vrat ki vidhi bataayengi. Us vrat ko shraddha se karne par tera kasht door hoga."
Naag-kanyaaon ke batae anusaar baalak ne poore vishwaas aur shraddha se Krishna paksha ki Chaturthi ko Shri Ganesh ka vrat kiya, chandrma ko arghya diya aur vidhivat puja ki. Vighnaharta Shri Ganesh prasann hue aur baalak ka langdapan poori tarah door ho gaya. Usne Ganesh ji se apne maata-pita (Kailash) tak pahunchne ki shakti maangi aur prapt ki.
Aage chalkar, jab kabhi Maata Parvati Bhagwan Shiv se rooth kar Kailash chhod deti, to Ganesh ji ke isi Sankashti vrat ke prabhav se hi unke parivaar mein phir se milan aur sukh-shaanti laut aati. Tabse drid maanyata hai ki har maas ki Krishna paksha Chaturthi ko Shri Ganesh ka vrat karne se sab "sankat" (vighna) door ho jaate hain.
Seekh: Sankashti Chaturthi vrat Vighnaharta Shri Ganesh ko samarpit hai. Chandra-darshan ke baad arghya dekar vrat khola jaata hai; isse vighna, rog, sankat aur kalah door hote hain — anjaane mein hui bhool ka bhi shraddha se nivaaran sambhav hai.