Turban is my crown which does not let me fall down.
Among Sikhs, the turban (dastar or pagg) is an article of faith which represents equalityu, honor, self respect, courage, spirituality and piety. It is regarded as a unique part of the sikh identity.
It is not uncommon for family members(wives, sisters, brothers) to help with tying the Pagg. In this painting we see she is helping him put his crown on.