What does it mean if someone says Astaghfirullah to you

Whoever Says: Astaghfirullah (I ask Allâh for Forgiveness) Sincerely, Allâh Almighty Forgives that Person

Whoever Says: Astaghfirullah (I ask Allâh for Forgiveness) Sincerely, Allâh Almighty Forgives that Person Question :Is ...