 A vague internal inclination pushed Sadighi to sculpture and while there was no sculpture mentor in Iran during the time and it was not taught anywhere including the School of Fine Arts, he formed a plaster statue of a child's half-trunk on 1922 by rudimentary tools and presented it to Ghaffari.By seeing the statue, the latter realized the talent of Sadighi, who was then one of the painting teachers of the school, and turned the greenhouse of the school to a sculpture workshop and Sadighi started gaining experience in sculpture while teaching painting and also learned about theoretical aspects of sculpture by reading the books Ghaffari had brought from Europe with him.After he formed several plaster statues and earned the necessary skills in two to three years, he one day asked Ghaffari to make it possible for him to form a stone statue.