Sanskar
Nishkramana
The child sees the sun and the world outside for the first time.
When
Around the fourth month after birth.
Nishkramana is the first bridge from the doorway to the world. A sight of the sun, a visit to a temple, a turn around a sacred tree — the form changes with place. The feeling is that the world is held, not feared.
Keeping the child out of crowds and harsh sun belongs to the rite. Going out is a slow introduction, not a show.
This is a general introduction. Sequence, materials, and timing change with family, region, and shakha. Your priest and your own custom have the last word.