risālah

رِسَالَة

letter; message; mission; calling

كتبت رسالة طويلة إلى صديقتها ولم ترسلها.
She wrote a long letter to her friend and never sent it.
يرى الطبيب في عمله رسالة لا مجرد وظيفة.
The doctor sees his work as a calling, not just a job.